diff --git a/homeassistant/components/unifiprotect/binary_sensor.py b/homeassistant/components/unifiprotect/binary_sensor.py
index 7e6342644237..88ae7da658cc 100644
--- a/homeassistant/components/unifiprotect/binary_sensor.py
+++ b/homeassistant/components/unifiprotect/binary_sensor.py
@@ -1,12 +1,13 @@
 """Component providing binary sensors for UniFi Protect."""
 
-from collections.abc import Sequence
+from collections.abc import Callable, Sequence
 import dataclasses
 import operator
 from typing import cast, override
 
 from uiprotect.data import (
     NVR,
+    Fob,
     ModelType,
     MountType,
     ProtectAdoptableDeviceModel,
@@ -26,6 +27,7 @@ from homeassistant.components.binary_sensor import (
 )
 from homeassistant.const import EntityCategory, Platform
 from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 
 from .data import ProtectData, ProtectDeviceType, UFPConfigEntry
@@ -36,6 +38,7 @@ from .entity import (
     ProtectDeviceEntity,
     ProtectEntityDescription,
     ProtectEventMixin,
+    ProtectFobEntity,
     ProtectIsOnEntity,
     ProtectNVREntity,
     async_all_device_entities,
@@ -727,6 +730,53 @@ def _async_nvr_entities(
     ]
 
 
+def _fob_battery_low(fob: Fob) -> bool | None:
+    """Return whether the key fob battery is low, if it has been reported."""
+    if (battery := fob.wireless_connection_state.battery_status) is not None:
+        return battery.is_low
+    return None
+
+
+@dataclasses.dataclass(frozen=True, kw_only=True)
+class ProtectFobBinaryEntityDescription(BinarySensorEntityDescription):
+    """Describes a UniFi Protect key fob binary sensor entity."""
+
+    value_fn: Callable[[Fob], bool | None]
+
+
+FOB_BINARY_SENSORS: tuple[ProtectFobBinaryEntityDescription, ...] = (
+    ProtectFobBinaryEntityDescription(
+        key="battery_low",
+        device_class=BinarySensorDeviceClass.BATTERY,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value_fn=_fob_battery_low,
+    ),
+)
+
+
+class ProtectFobBinarySensor(ProtectFobEntity, BinarySensorEntity):
+    """A binary sensor entity for a UniFi Protect key fob (Public API)."""
+
+    entity_description: ProtectFobBinaryEntityDescription
+    _fob_state_attrs = ("_attr_available", "_attr_is_on")
+
+    def __init__(
+        self,
+        data: ProtectData,
+        fob: Fob,
+        description: ProtectFobBinaryEntityDescription,
+    ) -> None:
+        """Initialize the key fob binary sensor."""
+        self.entity_description = description
+        self._attr_unique_id = f"{fob.mac}_{description.key}"
+        super().__init__(data, fob)
+
+    @callback
+    @override
+    def _async_update_from_fob(self, fob: Fob) -> None:
+        self._attr_is_on = self.entity_description.value_fn(fob)
+
+
 async def async_setup_entry(
     hass: HomeAssistant,
     entry: UFPConfigEntry,
@@ -734,6 +784,34 @@ async def async_setup_entry(
 ) -> None:
     """Set up binary sensors for UniFi Protect integration."""
     data = entry.runtime_data
+
+    @callback
+    def _add_new_public_device(device: PublicDeviceModel) -> None:
+        if isinstance(device, Fob):
+            async_add_entities(
+                ProtectFobBinarySensor(data, device, description)
+                for description in FOB_BINARY_SENSORS
+            )
+
+    entry.async_on_unload(
+        async_dispatcher_connect(hass, data.public_add_signal, _add_new_public_device)
+    )
+
+    # The public bootstrap is primed only with an API key and supported NVR
+    # firmware; without it there are no fobs to expose.
+    api = data.api
+    if api.has_public_bootstrap:
+        async_add_entities(
+            ProtectFobBinarySensor(data, fob, description)
+            for fob in api.public_bootstrap.fobs.values()
+            for description in FOB_BINARY_SENSORS
+        )
+
+    # Everything below is driven by the private bootstrap, which public-only
+    # entries do not have.
+    if api.is_public_only:
+        return
+
     async_remove_unsupported_sense_entities(
         hass, Platform.BINARY_SENSOR, data, (*SENSE_SENSORS, *MOUNTABLE_SENSE_SENSORS)
     )
diff --git a/homeassistant/components/unifiprotect/const.py b/homeassistant/components/unifiprotect/const.py
index f8685a6f73f3..03927d100fa9 100644
--- a/homeassistant/components/unifiprotect/const.py
+++ b/homeassistant/components/unifiprotect/const.py
@@ -85,8 +85,11 @@ PLATFORMS = [
 # rest enumerate from the private bootstrap, which is absent in this mode.
 PUBLIC_ONLY_PLATFORMS = [
     Platform.ALARM_CONTROL_PANEL,
+    Platform.BINARY_SENSOR,
     Platform.CAMERA,
+    Platform.EVENT,
     Platform.LIGHT,
+    Platform.SENSOR,
 ]
 
 # Stored local-user credentials do not imply the mode: they are kept on a
diff --git a/homeassistant/components/unifiprotect/entity.py b/homeassistant/components/unifiprotect/entity.py
index c814336aa1e0..8f1bba6124ff 100644
--- a/homeassistant/components/unifiprotect/entity.py
+++ b/homeassistant/components/unifiprotect/entity.py
@@ -14,6 +14,7 @@ from uiprotect.data import (
     NVR,
     DeviceState,
     Event,
+    Fob,
     ModelType,
     ProtectAdoptableDeviceModel,
     PublicDeviceModel,
@@ -443,6 +444,91 @@ class ProtectNVREntity(BaseProtectEntity):
         )
 
 
+class ProtectFobEntity(Entity):
+    """Base class for UniFi Protect key fob (Public API) entities.
+
+    A key fob is a public-only device: it lives in
+    ``ProtectApiClient.public_bootstrap.fobs`` and is refreshed over the public
+    devices websocket, so it does not use the private-device machinery in
+    :class:`BaseProtectEntity`. Availability follows the public websocket health
+    and the fob's presence in the bootstrap, mirroring the relay switch.
+    Subclasses fed by the events websocket set ``_ufp_requires_events_ws`` so
+    they also go unavailable when that stream drops.
+    """
+
+    _attr_should_poll = False
+    _attr_attribution = DEFAULT_ATTRIBUTION
+    _attr_has_entity_name = True
+    _ufp_requires_events_ws: bool = False
+    _fob_state_attrs: tuple[str, ...] = ("_attr_available",)
+
+    def __init__(self, data: ProtectData, fob: Fob) -> None:
+        """Initialize the fob entity and prime its state from the bootstrap."""
+        self.data = data
+        self._fob_id = fob.id
+        self._fob_mac = fob.mac
+        self._attr_device_info = DeviceInfo(
+            connections={(dr.CONNECTION_NETWORK_MAC, fob.mac)},
+            identifiers={(DOMAIN, fob.mac)},
+            manufacturer=DEFAULT_BRAND,
+            # A freshly-paired, unnamed fob reports ``name=None``; fall back to a
+            # stable default so the device is never registered nameless.
+            name=fob.name or f"Key Fob {fob.mac}",
+            model="Key Fob",
+            via_device_id=data.nvr_device_id,
+        )
+        self._attr_available = self._async_public_available()
+        self._async_update_from_fob(fob)
+
+    @property
+    def _fob(self) -> Fob | None:
+        """Return the cached fob from the public bootstrap, if still present."""
+        api = self.data.api
+        if not api.has_public_bootstrap:
+            return None
+        return api.public_bootstrap.fobs.get(self._fob_id)
+
+    @callback
+    def _async_public_available(self) -> bool:
+        """Return whether the streams backing this entity are healthy."""
+        data = self.data
+        return data.last_public_update_success and (
+            not self._ufp_requires_events_ws or data.last_events_update_success
+        )
+
+    @callback
+    def _async_update_from_fob(self, fob: Fob) -> None:
+        """Refresh entity state from the fob. Overridden by subclasses."""
+
+    @callback
+    def _async_updated(self, _obj: PublicDeviceModel | None) -> None:
+        """Handle a public devices WS update for this fob.
+
+        The state is always re-read from the public bootstrap: the library
+        merges WS updates into it before dispatching, and ``None`` (a websocket
+        state change or a delete) carries no object to read.
+        """
+        prev = [getattr(self, attr, None) for attr in self._fob_state_attrs]
+        if (fob := self._fob) is None:
+            self._attr_available = False
+        else:
+            self._attr_available = self._async_public_available()
+            self._async_update_from_fob(fob)
+        if [getattr(self, attr, None) for attr in self._fob_state_attrs] != prev:
+            self.async_write_ha_state()
+
+    @override
+    async def async_added_to_hass(self) -> None:
+        """Subscribe to public devices WS updates dispatched by ProtectData."""
+        await super().async_added_to_hass()
+        self.async_on_remove(
+            self.data.async_subscribe_public(self._fob_mac, self._async_updated)
+        )
+        # Refresh from the bootstrap: an update or delete that landed between
+        # construction and this subscription would otherwise be missed.
+        self._async_updated(None)
+
+
 class EventEntityMixin(ProtectDeviceEntity):
     """Adds motion event attributes to sensor."""
 
diff --git a/homeassistant/components/unifiprotect/event.py b/homeassistant/components/unifiprotect/event.py
index 6408865a8d04..3f3ccc585bc6 100644
--- a/homeassistant/components/unifiprotect/event.py
+++ b/homeassistant/components/unifiprotect/event.py
@@ -5,8 +5,9 @@ import re
 from typing import Any, override
 
 from uiprotect import ProtectEvent
-from uiprotect.data import ModelType, SmartDetectObjectType
+from uiprotect.data import Fob, ModelType, PublicDeviceModel, SmartDetectObjectType
 from uiprotect.data.nvr import Event, EventDetectedThumbnail
+from uiprotect.data.types import EventButtonType
 
 from homeassistant.components.event import (
     DoorbellEventType,
@@ -15,6 +16,7 @@ from homeassistant.components.event import (
     EventEntityDescription,
 )
 from homeassistant.core import CALLBACK_TYPE, HomeAssistant, callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 from homeassistant.helpers.event import async_call_at
 
@@ -41,7 +43,12 @@ from .data import (
     ProtectDeviceType,
     UFPConfigEntry,
 )
-from .entity import EventEntityMixin, ProtectDeviceEntity, ProtectEventMixin
+from .entity import (
+    EventEntityMixin,
+    ProtectDeviceEntity,
+    ProtectEventMixin,
+    ProtectFobEntity,
+)
 
 PARALLEL_UPDATES = 0
 
@@ -102,26 +109,17 @@ class ProtectDetectionEventEntityDescription(ProtectEventEntityDescription):
     include_event_source: bool = False
 
 
-class ProtectDevicePublicEventEntity(
-    EventEntityMixin, ProtectDeviceEntity, EventEntity
-):
-    """Base for entities driven by the public events WS.
+class ProtectFireOnceMixin(EventEntity):
+    """Dedup mixin for entities fired from the public events WS.
 
     A detection type can surface at the event start, on a later update, or only
-    as the event ends, and every non-eviction change is dispatched — so firing is
-    deduped per ``(event id, object type, event source)``.
-
-    Availability follows the public API (device present and connected) plus the
-    events websocket, which is the only channel these entities fire from.
+    as the event ends, and every non-eviction change is dispatched, so firing is
+    deduped per ``(event id, surfaced type, Protect event type)``.
     """
 
-    _ufp_uses_public = True
-    _ufp_requires_events_ws = True
-
-    entity_description: ProtectEventEntityDescription
-    # A camera can run two overlapping events of the same category whose
-    # dispatches interleave, so dedup tracks fired object/source pairs per
-    # recent event id (bounded), not just the current one.
+    # A device can run two overlapping events of the same category whose
+    # dispatches interleave, so dedup tracks fired type pairs per recent event
+    # id (bounded), not just the current one.
     _fired: dict[str, frozenset[tuple[str, EventType]]] | None = None
 
     @callback
@@ -148,6 +146,21 @@ class ProtectDevicePublicEventEntity(
         self.async_write_ha_state()
 
 
+class ProtectDevicePublicEventEntity(
+    ProtectFireOnceMixin, EventEntityMixin, ProtectDeviceEntity, EventEntity
+):
+    """Base for entities driven by the public events WS.
+
+    Availability follows the public API (device present and connected) plus the
+    events websocket, which is the only channel these entities fire from.
+    """
+
+    _ufp_uses_public = True
+    _ufp_requires_events_ws = True
+
+    entity_description: ProtectEventEntityDescription
+
+
 class ProtectDeviceRingEventEntity(ProtectDevicePublicEventEntity):
     """A UniFi Protect doorbell ring event entity driven by the public events WS."""
 
@@ -565,6 +578,60 @@ class ProtectDeviceMotionEventEntity(ProtectDeviceDetectionEventEntity):
         self._fire_once(event, EventType.MOTION.value, {ATTR_EVENT_ID: event.id})
 
 
+# Real hardware reports an empty ``feature_flags.buttons``, so the whole
+# vocabulary is declared. Sourced from the enum matched against
+# ``metadata.button`` below so the two cannot drift apart.
+_FOB_EVENT_TYPES: list[str] = [
+    button.name.lower()
+    for button in EventButtonType
+    if button is not EventButtonType.UNKNOWN
+]
+
+
+class ProtectFobButtonEventEntity(ProtectFireOnceMixin, ProtectFobEntity, EventEntity):
+    """A UniFi Protect key fob button-press event entity.
+
+    Each fob exposes one event entity that fires the pressed button (from a
+    public ``sensorButtonPressed`` event's ``metadata.button``) as its event
+    type.
+    """
+
+    _attr_translation_key = "keyfob"
+    _attr_event_types = _FOB_EVENT_TYPES
+    # Presses arrive only on the events websocket, so its health gates
+    # availability on top of the devices websocket.
+    _ufp_requires_events_ws = True
+
+    def __init__(self, data: ProtectData, fob: Fob) -> None:
+        """Initialize the key fob button event entity."""
+        self._attr_unique_id = f"{fob.mac}_keyfob"
+        super().__init__(data, fob)
+
+    @override
+    async def async_added_to_hass(self) -> None:
+        """Subscribe to public key-fob button-press events."""
+        await super().async_added_to_hass()
+        # A press arrives as a ``sensorButtonPressed`` event whose ``device`` is
+        # the fob and whose ``metadata.button`` is the pressed button.
+        self.async_on_remove(
+            self.data.async_subscribe_public_event(
+                self._fob_id, EventType.SENSOR_BUTTON_PRESSED, self._async_button_event
+            )
+        )
+
+    @callback
+    def _async_button_event(self, event: ProtectEvent) -> None:
+        if (metadata := event.metadata) is None or (button := metadata.button) is None:
+            return
+        # Skip a button added by newer firmware that coerces to
+        # ``EventButtonType.UNKNOWN`` (not among the declared event types).
+        if (button_type := button.name.lower()) not in self.event_types:
+            return
+        # A press is dispatched on every non-eviction change to its event, so
+        # the same press can arrive more than once.
+        self._fire_once(event, button_type, {ATTR_EVENT_ID: event.id})
+
+
 EVENT_DESCRIPTIONS: tuple[ProtectEventEntityDescription, ...] = (
     ProtectEventEntityDescription(
         key="doorbell",
@@ -658,6 +725,29 @@ async def async_setup_entry(
     """Set up event entities for UniFi Protect integration."""
     data = entry.runtime_data
 
+    @callback
+    def _add_new_public_device(device: PublicDeviceModel) -> None:
+        if isinstance(device, Fob):
+            async_add_entities([ProtectFobButtonEventEntity(data, device)])
+
+    entry.async_on_unload(
+        async_dispatcher_connect(hass, data.public_add_signal, _add_new_public_device)
+    )
+
+    # The public bootstrap is primed only with an API key and supported NVR
+    # firmware; without it there are no fobs to expose.
+    api = data.api
+    if api.has_public_bootstrap:
+        async_add_entities(
+            ProtectFobButtonEventEntity(data, fob)
+            for fob in api.public_bootstrap.fobs.values()
+        )
+
+    # Everything below is driven by the private bootstrap, which public-only
+    # entries do not have.
+    if api.is_public_only:
+        return
+
     @callback
     def _add_new_device(device: ProtectAdoptableDeviceModel) -> None:
         # AiPort inherits from Camera but should not create camera-specific entities
diff --git a/homeassistant/components/unifiprotect/icons.json b/homeassistant/components/unifiprotect/icons.json
index d027fca002c2..6a4bbad7f7da 100644
--- a/homeassistant/components/unifiprotect/icons.json
+++ b/homeassistant/components/unifiprotect/icons.json
@@ -181,6 +181,9 @@
       "fingerprint": {
         "default": "mdi:fingerprint"
       },
+      "keyfob": {
+        "default": "mdi:remote"
+      },
       "motion_detection": {
         "default": "mdi:motion-sensor"
       },
@@ -274,6 +277,9 @@
       "doorbell_text": {
         "default": "mdi:card-text"
       },
+      "fob_status": {
+        "default": "mdi:remote"
+      },
       "infrared_mode": {
         "default": "mdi:circle-opacity"
       },
diff --git a/homeassistant/components/unifiprotect/sensor.py b/homeassistant/components/unifiprotect/sensor.py
index cb3896cbd2c4..c53b7125f71c 100644
--- a/homeassistant/components/unifiprotect/sensor.py
+++ b/homeassistant/components/unifiprotect/sensor.py
@@ -10,6 +10,8 @@ from typing import Any, cast, override
 from uiprotect.data import (
     NVR,
     Camera,
+    Fob,
+    FobAwayState,
     Light,
     ModelType,
     ProtectAdoptableDeviceModel,
@@ -42,6 +44,7 @@ from homeassistant.const import (
     UnitOfTime,
 )
 from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 
 from .data import ProtectData, ProtectDeviceType, UFPConfigEntry
@@ -52,6 +55,7 @@ from .entity import (
     ProtectDeviceEntity,
     ProtectEntityDescription,
     ProtectEventMixin,
+    ProtectFobEntity,
     ProtectNVREntity,
     T,
     async_all_device_entities,
@@ -591,6 +595,91 @@ _MODEL_DESCRIPTIONS: dict[ModelType, Sequence[ProtectEntityDescription]] = {
 }
 
 
+def _fob_battery_level(fob: Fob) -> int | None:
+    """Return the key fob battery percentage, if it has been reported."""
+    if (battery := fob.wireless_connection_state.battery_status) is not None:
+        return battery.percentage
+    return None
+
+
+def _fob_signal_strength(fob: Fob) -> int | None:
+    """Return the key fob Bluetooth signal strength, if it has been reported."""
+    if (signal := fob.wireless_connection_state.signal_state) is not None:
+        return signal.signal_strength
+    return None
+
+
+def _fob_status(fob: Fob) -> str | None:
+    """Return the key fob presence state.
+
+    ``FobAwayState`` carries an ``UNKNOWN`` member that the library coerces
+    unrecognized wire values into; map it to ``None`` (unknown state) rather
+    than a value the enum sensor's ``options`` do not list.
+    """
+    if (away_state := fob.away_state) is FobAwayState.UNKNOWN:
+        return None
+    return away_state.value.lower()
+
+
+@dataclass(frozen=True, kw_only=True)
+class ProtectFobSensorEntityDescription(SensorEntityDescription):
+    """Describes a UniFi Protect key fob sensor entity."""
+
+    value_fn: Callable[[Fob], int | str | None]
+
+
+FOB_SENSORS: tuple[ProtectFobSensorEntityDescription, ...] = (
+    ProtectFobSensorEntityDescription(
+        key="battery_level",
+        device_class=SensorDeviceClass.BATTERY,
+        native_unit_of_measurement=PERCENTAGE,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        state_class=SensorStateClass.MEASUREMENT,
+        value_fn=_fob_battery_level,
+    ),
+    ProtectFobSensorEntityDescription(
+        key="signal_strength",
+        device_class=SensorDeviceClass.SIGNAL_STRENGTH,
+        native_unit_of_measurement=SIGNAL_STRENGTH_DECIBELS_MILLIWATT,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        entity_registry_enabled_default=False,
+        state_class=SensorStateClass.MEASUREMENT,
+        value_fn=_fob_signal_strength,
+    ),
+    ProtectFobSensorEntityDescription(
+        key="status",
+        translation_key="fob_status",
+        device_class=SensorDeviceClass.ENUM,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        options=["online", "recently_seen", "no_recent_heartbeat", "device_lost"],
+        value_fn=_fob_status,
+    ),
+)
+
+
+class ProtectFobSensor(ProtectFobEntity, SensorEntity):
+    """A sensor entity for a UniFi Protect key fob (Public API)."""
+
+    entity_description: ProtectFobSensorEntityDescription
+    _fob_state_attrs = ("_attr_available", "_attr_native_value")
+
+    def __init__(
+        self,
+        data: ProtectData,
+        fob: Fob,
+        description: ProtectFobSensorEntityDescription,
+    ) -> None:
+        """Initialize the key fob sensor."""
+        self.entity_description = description
+        self._attr_unique_id = f"{fob.mac}_{description.key}"
+        super().__init__(data, fob)
+
+    @callback
+    @override
+    def _async_update_from_fob(self, fob: Fob) -> None:
+        self._attr_native_value = self.entity_description.value_fn(fob)
+
+
 async def async_setup_entry(
     hass: HomeAssistant,
     entry: UFPConfigEntry,
@@ -598,6 +687,34 @@ async def async_setup_entry(
 ) -> None:
     """Set up sensors for UniFi Protect integration."""
     data = entry.runtime_data
+
+    @callback
+    def _add_new_public_device(device: PublicDeviceModel) -> None:
+        if isinstance(device, Fob):
+            async_add_entities(
+                ProtectFobSensor(data, device, description)
+                for description in FOB_SENSORS
+            )
+
+    entry.async_on_unload(
+        async_dispatcher_connect(hass, data.public_add_signal, _add_new_public_device)
+    )
+
+    # The public bootstrap is primed only with an API key and supported NVR
+    # firmware; without it there are no fobs to expose.
+    api = data.api
+    if api.has_public_bootstrap:
+        async_add_entities(
+            ProtectFobSensor(data, fob, description)
+            for fob in api.public_bootstrap.fobs.values()
+            for description in FOB_SENSORS
+        )
+
+    # Everything below is driven by the private bootstrap, which public-only
+    # entries do not have.
+    if api.is_public_only:
+        return
+
     async_remove_unsupported_sense_entities(hass, Platform.SENSOR, data, SENSE_SENSORS)
 
     @callback
diff --git a/homeassistant/components/unifiprotect/strings.json b/homeassistant/components/unifiprotect/strings.json
index d8776e546a14..49272c1732af 100644
--- a/homeassistant/components/unifiprotect/strings.json
+++ b/homeassistant/components/unifiprotect/strings.json
@@ -365,6 +365,26 @@
           }
         }
       },
+      "keyfob": {
+        "name": "Button",
+        "state_attributes": {
+          "event_type": {
+            "state": {
+              "alarm_hub_button": "Alarm hub button",
+              "arm": "Arm",
+              "disarm": "Disarm",
+              "function": "Function",
+              "input1": "Input 1",
+              "input2": "Input 2",
+              "left": "Left",
+              "main": "Main",
+              "night": "Night",
+              "panic": "Panic",
+              "right": "Right"
+            }
+          }
+        }
+      },
       "motion_detection": {
         "name": "Motion detection",
         "state_attributes": {
@@ -586,6 +606,15 @@
       "doorbell_text": {
         "name": "[%key:component::unifiprotect::entity::select::doorbell_text::name%]"
       },
+      "fob_status": {
+        "name": "Status",
+        "state": {
+          "device_lost": "Device lost",
+          "no_recent_heartbeat": "No recent heartbeat",
+          "online": "Online",
+          "recently_seen": "Recently seen"
+        }
+      },
       "infrared_mode": {
         "name": "[%key:component::unifiprotect::entity::select::infrared_mode::name%]"
       },
diff --git a/tests/components/unifiprotect/conftest.py b/tests/components/unifiprotect/conftest.py
index 71b5c2ae3979..a265e0d262d5 100644
--- a/tests/components/unifiprotect/conftest.py
+++ b/tests/components/unifiprotect/conftest.py
@@ -199,6 +199,7 @@ def mock_ufp_client(bootstrap: Bootstrap):
     client.public_bootstrap.lights = {}
     client.public_bootstrap.relays = {}
     client.public_bootstrap.sirens = {}
+    client.public_bootstrap.fobs = {}
     client.public_bootstrap.arm_profiles = {}
     client.public_bootstrap.arm_mode = None
     client.public_bootstrap.nvr = Mock()
@@ -229,6 +230,7 @@ def mock_ufp_client(bootstrap: Bootstrap):
         yield from pb.lights.values()
         yield from pb.relays.values()
         yield from pb.sirens.values()
+        yield from pb.fobs.values()
 
     client.public_bootstrap.all_devices = _public_all_devices
 
@@ -652,7 +654,12 @@ def mock_ufp_public_only_client() -> Mock:
     # them, so both helpers below read the attribute at call time.
     pb.cameras = {}
     pb.lights = {}
-    device_maps = {ModelType.CAMERA: "cameras", ModelType.LIGHT: "lights"}
+    pb.fobs = {}
+    device_maps = {
+        ModelType.CAMERA: "cameras",
+        ModelType.LIGHT: "lights",
+        ModelType.FOB: "fobs",
+    }
 
     def _all_devices(*, include_nvr: bool = False) -> Iterator[Mock]:
         if include_nvr and pb.nvr is not None:
diff --git a/tests/components/unifiprotect/snapshots/test_fob.ambr b/tests/components/unifiprotect/snapshots/test_fob.ambr
new file mode 100644
index 000000000000..d9038e1cccac
--- /dev/null
+++ b/tests/components/unifiprotect/snapshots/test_fob.ambr
@@ -0,0 +1,16 @@
+# serializer version: 1
+# name: test_fob_button_event_types
+  list([
+    'function',
+    'alarm_hub_button',
+    'arm',
+    'disarm',
+    'night',
+    'panic',
+    'left',
+    'right',
+    'input1',
+    'input2',
+    'main',
+  ])
+# ---
diff --git a/tests/components/unifiprotect/test_alarm_control_panel.py b/tests/components/unifiprotect/test_alarm_control_panel.py
index 5db8d8048644..2c2dc41d8e5d 100644
--- a/tests/components/unifiprotect/test_alarm_control_panel.py
+++ b/tests/components/unifiprotect/test_alarm_control_panel.py
@@ -46,6 +46,7 @@ def _make_public_bootstrap(arm_mode: Mock | None) -> Mock:
     pb.arm_profiles = {}
     pb.relays = {}
     pb.sirens = {}
+    pb.fobs = {}
     return pb
 
 
diff --git a/tests/components/unifiprotect/test_fob.py b/tests/components/unifiprotect/test_fob.py
new file mode 100644
index 000000000000..b8cec638d26d
--- /dev/null
+++ b/tests/components/unifiprotect/test_fob.py
@@ -0,0 +1,636 @@
+"""Tests for the UniFi Protect key fob (Public API) entities."""
+
+from datetime import datetime
+from unittest.mock import AsyncMock, Mock
+
+import pytest
+from syrupy.assertion import SnapshotAssertion
+from uiprotect import EventChange, ProtectEvent, ProtectEventChannel
+from uiprotect.data import (
+    DeviceState,
+    EventType,
+    Fob,
+    FobAwayState,
+    FobButton,
+    ModelType,
+    PublicBootstrap,
+    PublicFobFeatureFlags,
+    WSAction,
+)
+from uiprotect.data.public_devices import (
+    PublicSignalState,
+    PublicWirelessBatteryStatus,
+    PublicWirelessConnectionState,
+)
+from uiprotect.data.public_event import PublicEventMetadata
+from uiprotect.data.types import EventButtonType
+from uiprotect.websocket import WebsocketState
+
+from homeassistant.components.unifiprotect.const import ATTR_EVENT_ID
+from homeassistant.const import ATTR_ATTRIBUTION, STATE_UNAVAILABLE
+from homeassistant.core import Event as HAEvent, HomeAssistant, callback
+from homeassistant.helpers import device_registry as dr, entity_registry as er
+from homeassistant.helpers.event import async_track_state_change_event
+
+from .utils import MockUFPFixture, enable_entity, init_entry, public_device_ws_message
+
+FOB_ID = "fob-id-1"
+FOB_MAC = "AA:BB:CC:DD:EE:F0"
+FOB_NAME = "Front Door Fob"
+
+BATTERY_SENSOR = "sensor.front_door_fob_battery"
+SIGNAL_SENSOR = "sensor.front_door_fob_signal_strength"
+STATUS_SENSOR = "sensor.front_door_fob_status"
+BATTERY_LOW_BINARY = "binary_sensor.front_door_fob_battery"
+BUTTON_EVENT = "event.front_door_fob_button"
+
+
+def _make_fob(
+    *,
+    buttons: list[FobButton] | None = None,
+    away_state: FobAwayState = FobAwayState.ONLINE,
+    percentage: int | None = 80,
+    is_low: bool = False,
+    signal_strength: int | None = -55,
+    state: DeviceState = DeviceState.CONNECTED,
+    name: str | None = FOB_NAME,
+) -> Mock:
+    """Build a mock :class:`Fob` backed by real public sub-models."""
+    fob = Mock(spec=Fob)
+    fob.id = FOB_ID
+    fob.mac = FOB_MAC
+    fob.name = name
+    fob.model = ModelType.FOB
+    fob.state = state
+    fob.away_state = away_state
+    # Real USL-FOB hardware reports an empty featureFlags.buttons.
+    fob.feature_flags = PublicFobFeatureFlags(buttons=buttons or [])
+    fob.wireless_connection_state = PublicWirelessConnectionState(
+        battery_status=PublicWirelessBatteryStatus(
+            percentage=percentage, is_low=is_low
+        ),
+        signal_state=PublicSignalState(
+            signal_strength=signal_strength, signal_quality=None
+        ),
+    )
+    return fob
+
+
+def _make_public_bootstrap(fob: Mock | None) -> Mock:
+    """Build a public bootstrap mock holding the given fob."""
+    pb = Mock(spec=PublicBootstrap)
+    pb.fobs = {fob.id: fob} if fob is not None else {}
+    pb.cameras = {}
+    pb.lights = {}
+    pb.relays = {}
+    pb.sirens = {}
+    pb.arm_mode = None
+    pb.arm_profiles = {}
+    pb.nvr = Mock()
+    pb.nvr.mac = "aa:bb:cc:dd:ee:ff"
+    pb.nvr.name = "Test NVR"
+    pb.nvr.display_name = "Test NVR"
+    pb.nvr.device_type = None
+    pb.nvr.type = None
+
+    # The baseline and reconnect resync enumerate all_devices(); a fob missing
+    # from it would be redispatched as new on every reconnect.
+    def _all_devices(*, include_nvr: bool = False) -> list[Mock]:
+        devices = list(pb.fobs.values())
+        return [pb.nvr, *devices] if include_nvr else devices
+
+    pb.all_devices = _all_devices
+    return pb
+
+
+@pytest.fixture(name="ufp_with_fob")
+def _ufp_with_fob(ufp: MockUFPFixture) -> tuple[MockUFPFixture, Mock]:
+    """Configure the ufp fixture with a single key fob on the public API."""
+    fob = _make_fob()
+    ufp.api.has_public_bootstrap = True
+    ufp.api.public_bootstrap = _make_public_bootstrap(fob)
+    return ufp, fob
+
+
+def _button_event(
+    fob: Mock,
+    *,
+    event_id: str = "evt-1",
+    button: EventButtonType | None = EventButtonType.ARM,
+    now: datetime | None = None,
+) -> ProtectEvent:
+    """Build a button-press ``ProtectEvent`` matching a real USL-FOB capture.
+
+    A real press is born-closed (``start == end``) and carries the fob itself as
+    the event ``device`` with the pressed button in ``metadata.button``. Pass
+    ``button=None`` to omit metadata entirely.
+    """
+    when = now or datetime(2026, 1, 1)
+    return ProtectEvent(
+        id=event_id,
+        type=EventType.SENSOR_BUTTON_PRESSED,
+        channel=ProtectEventChannel.SENSOR,
+        device_id=fob.id,
+        device_mac=fob.mac,
+        start=when,
+        end=when,
+        metadata=None if button is None else PublicEventMetadata(button=button),
+    )
+
+
+async def test_fob_not_created_without_public_bootstrap(
+    hass: HomeAssistant, ufp: MockUFPFixture
+) -> None:
+    """No fob entities are created when the public bootstrap is unavailable."""
+    ufp.api.has_public_bootstrap = False
+    await init_entry(hass, ufp, [])
+
+    assert hass.states.get(BATTERY_SENSOR) is None
+    assert hass.states.get(BUTTON_EVENT) is None
+
+
+async def test_fob_entities_created(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+    device_registry: dr.DeviceRegistry,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """The fob device and its entities are created from the public bootstrap."""
+    ufp, _fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    device = device_registry.async_get_device_by_connection(
+        (dr.CONNECTION_NETWORK_MAC, FOB_MAC), ufp.entry.entry_id
+    )
+    assert device is not None
+    assert device.name == FOB_NAME
+
+    battery = entity_registry.async_get(BATTERY_SENSOR)
+    assert battery is not None
+    assert battery.unique_id == f"{FOB_MAC}_battery_level"
+    state = hass.states.get(BATTERY_SENSOR)
+    assert state is not None
+    assert state.state == "80"
+    assert state.attributes[ATTR_ATTRIBUTION]
+
+    # Signal strength is a diagnostic sensor, disabled by default.
+    assert hass.states.get(SIGNAL_SENSOR) is None
+    signal = entity_registry.async_get(SIGNAL_SENSOR)
+    assert signal is not None
+    assert signal.disabled
+
+    status = hass.states.get(STATUS_SENSOR)
+    assert status is not None
+    assert status.state == "online"
+
+    battery_low = hass.states.get(BATTERY_LOW_BINARY)
+    assert battery_low is not None
+    assert battery_low.state == "off"
+
+
+async def test_fob_button_event_types(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+    snapshot: SnapshotAssertion,
+) -> None:
+    """The button event entity declares the full button vocabulary.
+
+    Real hardware reports an empty ``feature_flags.buttons``, so the entity
+    cannot derive its types from the device and declares them all.
+    """
+    ufp, _fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    state = hass.states.get(BUTTON_EVENT)
+    assert state is not None
+    assert state.attributes["event_types"] == snapshot
+
+
+@pytest.mark.parametrize(
+    ("button", "expected_event_type"),
+    [
+        pytest.param(EventButtonType.ARM, "arm", id="arm"),
+        pytest.param(EventButtonType.DISARM, "disarm", id="disarm"),
+        pytest.param(EventButtonType.PANIC, "panic", id="panic"),
+        pytest.param(
+            EventButtonType.ALARM_HUB_BUTTON,
+            "alarm_hub_button",
+            id="camelcase_maps_to_snake_case",
+        ),
+    ],
+)
+async def test_fob_button_press_fires_event(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+    button: EventButtonType,
+    expected_event_type: str,
+) -> None:
+    """A sensor button-press fires an event of the matching snake_case type."""
+    ufp, fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    events: list[HAEvent] = []
+
+    @callback
+    def _capture(event: HAEvent) -> None:
+        events.append(event)
+
+    unsub = async_track_state_change_event(hass, BUTTON_EVENT, _capture)
+
+    ufp.events_msg(_button_event(fob, button=button), EventChange.STARTED)
+    await hass.async_block_till_done()
+
+    assert len(events) == 1
+    new_state = events[0].data["new_state"]
+    assert new_state.attributes["event_type"] == expected_event_type
+    assert new_state.attributes[ATTR_EVENT_ID] == "evt-1"
+    unsub()
+
+
+@pytest.mark.parametrize(
+    "button",
+    [
+        pytest.param(EventButtonType.UNKNOWN, id="unknown_button"),
+        pytest.param(None, id="no_metadata"),
+    ],
+)
+async def test_fob_button_press_ignored(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+    button: EventButtonType | None,
+) -> None:
+    """A press for an unknown button, or one with no metadata, does not fire."""
+    ufp, fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    events: list[HAEvent] = []
+
+    @callback
+    def _capture(event: HAEvent) -> None:
+        events.append(event)
+
+    unsub = async_track_state_change_event(hass, BUTTON_EVENT, _capture)
+
+    ufp.events_msg(_button_event(fob, button=button), EventChange.STARTED)
+    await hass.async_block_till_done()
+
+    assert len(events) == 0
+    unsub()
+
+
+async def test_fob_battery_updates_from_public_ws(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """A public devices WS update for the fob refreshes the battery sensor."""
+    ufp, fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    assert hass.states.get(BATTERY_SENSOR).state == "80"
+
+    fob.wireless_connection_state = PublicWirelessConnectionState(
+        battery_status=PublicWirelessBatteryStatus(percentage=42, is_low=False),
+        signal_state=PublicSignalState(signal_strength=-55, signal_quality=None),
+    )
+
+    mock_msg = Mock()
+    mock_msg.changed_data = {}
+    mock_msg.old_obj = fob
+    mock_msg.new_obj = fob
+    assert ufp.devices_ws_subscription is not None
+    ufp.devices_ws_subscription(mock_msg)
+    await hass.async_block_till_done()
+
+    assert hass.states.get(BATTERY_SENSOR).state == "42"
+
+
+async def test_fob_unavailable_on_public_ws_disconnect(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """Fob entities go unavailable when the public websocket disconnects."""
+    ufp, _fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    assert hass.states.get(BATTERY_SENSOR).state == "80"
+
+    assert ufp.devices_ws_state_subscription is not None
+    ufp.devices_ws_state_subscription(WebsocketState.DISCONNECTED)
+    await hass.async_block_till_done()
+
+    assert hass.states.get(BATTERY_SENSOR).state == STATE_UNAVAILABLE
+
+
+async def test_fob_present_at_startup_not_added_twice(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+    ufp: MockUFPFixture,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """A fob known at setup is not added a second time by a later add frame.
+
+    The startup baseline is taken from ``all_devices()``; a fob missing from it
+    is treated as new when any add frame for it arrives (a re-delivered frame,
+    or a re-pair), which would clash on unique_id.
+    """
+    fob = _make_fob()
+    ufp.api.is_public_only = True
+    ufp.api.has_public_bootstrap = True
+    pb = _make_public_bootstrap(fob)
+    ufp.api.public_bootstrap = pb
+    ufp.api.update_public = AsyncMock(return_value=pb)
+
+    await init_entry(hass, ufp, [])
+    assert hass.states.get(BATTERY_SENSOR).state == "80"
+
+    msg = public_device_ws_message(fob)
+    msg.action = WSAction.ADD
+    assert ufp.devices_ws_subscription is not None
+    ufp.devices_ws_subscription(msg)
+    await hass.async_block_till_done()
+
+    assert "already exists" not in caplog.text
+    assert (
+        len(
+            [
+                entry
+                for entry in entity_registry.entities.values()
+                if entry.unique_id.startswith(FOB_MAC)
+            ]
+        )
+        == 5
+    )
+
+
+async def test_fob_button_dedup_across_dispatches(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """A press fires once even though every change to its event is dispatched."""
+    ufp, fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    events: list[HAEvent] = []
+
+    @callback
+    def _capture(event: HAEvent) -> None:
+        events.append(event)
+
+    unsub = async_track_state_change_event(hass, BUTTON_EVENT, _capture)
+    for change in (EventChange.STARTED, EventChange.UPDATED, EventChange.ENDED):
+        ufp.events_msg(_button_event(fob), change)
+        await hass.async_block_till_done()
+    unsub()
+
+    assert len(events) == 1
+
+    # A genuinely new press on the same button still fires.
+    unsub = async_track_state_change_event(hass, BUTTON_EVENT, _capture)
+    ufp.events_msg(_button_event(fob, event_id="evt-2"), EventChange.STARTED)
+    await hass.async_block_till_done()
+    unsub()
+
+    assert len(events) == 2
+
+
+async def test_fob_button_unavailable_on_events_ws_disconnect(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """Only the button entity follows the events websocket.
+
+    Presses arrive solely on the events stream, so the event entity must not
+    stay available while it is down; the sensors are fed by the devices
+    stream and are unaffected.
+    """
+    ufp, _fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    assert hass.states.get(BUTTON_EVENT).state != STATE_UNAVAILABLE
+
+    assert ufp.events_ws_state_subscription is not None
+    ufp.events_ws_state_subscription(WebsocketState.DISCONNECTED)
+    await hass.async_block_till_done()
+
+    assert hass.states.get(BUTTON_EVENT).state == STATE_UNAVAILABLE
+    assert hass.states.get(BATTERY_SENSOR).state == "80"
+
+    ufp.events_ws_state_subscription(WebsocketState.CONNECTED)
+    await hass.async_block_till_done()
+
+    assert hass.states.get(BUTTON_EVENT).state != STATE_UNAVAILABLE
+
+
+async def test_fob_battery_none_is_unknown(
+    hass: HomeAssistant,
+    ufp: MockUFPFixture,
+) -> None:
+    """A freshly-paired fob reporting null battery yields an unknown state."""
+    fob = _make_fob(percentage=None)
+    ufp.api.has_public_bootstrap = True
+    ufp.api.public_bootstrap = _make_public_bootstrap(fob)
+
+    await init_entry(hass, ufp, [])
+
+    state = hass.states.get(BATTERY_SENSOR)
+    assert state is not None
+    assert state.state == "unknown"
+
+
+async def test_fob_signal_sensor_when_enabled(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """Enabling the signal-strength sensor exposes the fob's signal value."""
+    ufp, _fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    await enable_entity(hass, ufp.entry.entry_id, SIGNAL_SENSOR)
+
+    state = hass.states.get(SIGNAL_SENSOR)
+    assert state is not None
+    assert state.state == "-55"
+
+
+async def test_fob_event_entity_created_with_empty_feature_flags(
+    hass: HomeAssistant,
+    ufp: MockUFPFixture,
+) -> None:
+    """A fob with empty feature_flags (real hardware) still gets an event entity."""
+    fob = _make_fob(buttons=[])
+    ufp.api.has_public_bootstrap = True
+    ufp.api.public_bootstrap = _make_public_bootstrap(fob)
+
+    await init_entry(hass, ufp, [])
+
+    state = hass.states.get(BUTTON_EVENT)
+    assert state is not None
+    assert "arm" in state.attributes["event_types"]
+
+
+async def test_fob_status_reflects_away_state(
+    hass: HomeAssistant,
+    ufp: MockUFPFixture,
+) -> None:
+    """The status sensor reflects a lost fob's away state."""
+    fob = _make_fob(away_state=FobAwayState.DEVICE_LOST)
+    ufp.api.has_public_bootstrap = True
+    ufp.api.public_bootstrap = _make_public_bootstrap(fob)
+
+    await init_entry(hass, ufp, [])
+
+    state = hass.states.get(STATUS_SENSOR)
+    assert state is not None
+    assert state.state == "device_lost"
+
+
+async def test_fob_unknown_away_state_is_unknown(
+    hass: HomeAssistant,
+    ufp: MockUFPFixture,
+) -> None:
+    """An unrecognized away state maps to an unknown status, not a ValueError."""
+    fob = _make_fob(away_state=FobAwayState.UNKNOWN)
+    ufp.api.has_public_bootstrap = True
+    ufp.api.public_bootstrap = _make_public_bootstrap(fob)
+
+    await init_entry(hass, ufp, [])
+
+    state = hass.states.get(STATUS_SENSOR)
+    assert state is not None
+    assert state.state == "unknown"
+
+
+async def test_fob_unavailable_when_removed_from_bootstrap(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """A fob deleted from the public bootstrap marks its entities unavailable."""
+    ufp, fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    assert hass.states.get(BATTERY_SENSOR).state == "80"
+
+    # Delete event: the library removes the object before dispatching ``None``.
+    del ufp.api.public_bootstrap.fobs[fob.id]
+    mock_msg = Mock()
+    mock_msg.old_obj = fob
+    mock_msg.new_obj = None
+    assert ufp.devices_ws_subscription is not None
+    ufp.devices_ws_subscription(mock_msg)
+    await hass.async_block_till_done()
+
+    state = hass.states.get(BATTERY_SENSOR)
+    assert state is not None
+    assert state.state == STATE_UNAVAILABLE
+
+
+async def test_fob_without_wireless_data_is_unknown(
+    hass: HomeAssistant,
+    ufp: MockUFPFixture,
+) -> None:
+    """A freshly-paired fob with no battery/signal reported reads as unknown."""
+    fob = _make_fob()
+    fob.wireless_connection_state = PublicWirelessConnectionState(
+        battery_status=None, signal_state=None
+    )
+    ufp.api.has_public_bootstrap = True
+    ufp.api.public_bootstrap = _make_public_bootstrap(fob)
+
+    await init_entry(hass, ufp, [])
+
+    assert hass.states.get(BATTERY_SENSOR).state == "unknown"
+    assert hass.states.get(BATTERY_LOW_BINARY).state == "unknown"
+
+    await enable_entity(hass, ufp.entry.entry_id, SIGNAL_SENSOR)
+    assert hass.states.get(SIGNAL_SENSOR).state == "unknown"
+
+
+async def test_fob_unavailable_when_public_bootstrap_lost(
+    hass: HomeAssistant,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """Losing the public bootstrap marks fob entities unavailable."""
+    ufp, fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    assert hass.states.get(BATTERY_SENSOR).state == "80"
+
+    ufp.api.has_public_bootstrap = False
+    mock_msg = Mock()
+    mock_msg.changed_data = {}
+    mock_msg.old_obj = fob
+    mock_msg.new_obj = fob
+    assert ufp.devices_ws_subscription is not None
+    ufp.devices_ws_subscription(mock_msg)
+    await hass.async_block_till_done()
+
+    state = hass.states.get(BATTERY_SENSOR)
+    assert state is not None
+    assert state.state == STATE_UNAVAILABLE
+
+
+async def test_fob_entity_counts(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+    ufp_with_fob: tuple[MockUFPFixture, Mock],
+) -> None:
+    """Exactly the expected fob entities are created across platforms."""
+    ufp, _fob = ufp_with_fob
+    await init_entry(hass, ufp, [])
+
+    fob_entities = [
+        entry
+        for entry in entity_registry.entities.values()
+        if entry.unique_id.startswith(FOB_MAC)
+    ]
+    # battery sensor, signal sensor, status sensor, battery-low binary, button event
+    assert len(fob_entities) == 5
+    assert sum(not entry.disabled for entry in fob_entities) == 4
+
+
+async def test_fob_added_at_runtime(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+    ufp: MockUFPFixture,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """A fob paired after setup is discovered from its public add frame."""
+    ufp.api.is_public_only = True
+    ufp.api.has_public_bootstrap = True
+    pb = _make_public_bootstrap(None)
+    ufp.api.public_bootstrap = pb
+    ufp.api.update_public = AsyncMock(return_value=pb)
+
+    await init_entry(hass, ufp, [])
+    assert hass.states.get(BATTERY_SENSOR) is None
+
+    fob = _make_fob()
+    pb.fobs = {fob.id: fob}
+    msg = public_device_ws_message(fob)
+    msg.action = WSAction.ADD
+    assert ufp.devices_ws_subscription is not None
+    ufp.devices_ws_subscription(msg)
+    await hass.async_block_till_done()
+
+    assert hass.states.get(BATTERY_SENSOR).state == "80"
+    assert hass.states.get(BATTERY_LOW_BINARY).state == "off"
+    assert hass.states.get(BUTTON_EVENT) is not None
+
+    # A re-delivered add frame is deduped before the platforms see it, so no
+    # duplicate unique_id error is logged.
+    msg = public_device_ws_message(fob)
+    msg.action = WSAction.ADD
+    ufp.devices_ws_subscription(msg)
+    await hass.async_block_till_done()
+
+    assert "already exists" not in caplog.text
+    assert (
+        len(
+            [
+                entry
+                for entry in entity_registry.entities.values()
+                if entry.unique_id.startswith(FOB_MAC)
+            ]
+        )
+        == 5
+    )
diff --git a/tests/components/unifiprotect/test_relay.py b/tests/components/unifiprotect/test_relay.py
index 28608fefdac6..f84c892868ba 100644
--- a/tests/components/unifiprotect/test_relay.py
+++ b/tests/components/unifiprotect/test_relay.py
@@ -80,6 +80,7 @@ def _make_public_bootstrap(relay: Mock | None) -> Mock:
     pb.arm_mode = None
     pb.arm_profiles = {}
     pb.sirens = {}
+    pb.fobs = {}
     return pb
 
 
diff --git a/tests/components/unifiprotect/test_select.py b/tests/components/unifiprotect/test_select.py
index 830b494314d5..8436315d6cee 100644
--- a/tests/components/unifiprotect/test_select.py
+++ b/tests/components/unifiprotect/test_select.py
@@ -1024,6 +1024,7 @@ def _make_public_bootstrap(arm_mode: Mock | None, profiles: dict[str, Mock]) ->
     pb.arm_profiles = profiles
     pb.relays = {}
     pb.sirens = {}
+    pb.fobs = {}
     return pb
 
 
diff --git a/tests/components/unifiprotect/test_siren.py b/tests/components/unifiprotect/test_siren.py
index 747972d6764e..aca926ff5e49 100644
--- a/tests/components/unifiprotect/test_siren.py
+++ b/tests/components/unifiprotect/test_siren.py
@@ -73,6 +73,7 @@ def _make_public_bootstrap(siren: Mock | None) -> Mock:
     pb.relays = {}
     pb.arm_mode = None
     pb.arm_profiles = {}
+    pb.fobs = {}
     return pb
 
 
diff --git a/tests/components/unifiprotect/utils.py b/tests/components/unifiprotect/utils.py
index 7bceed289a70..2d1f6dfc2d02 100644
--- a/tests/components/unifiprotect/utils.py
+++ b/tests/components/unifiprotect/utils.py
@@ -588,6 +588,7 @@ def setup_public_sensor(
     pb.sensors = public_bootstrap.sensors
     pb.relays = {}
     pb.sirens = {}
+    pb.fobs = {}
     pb.arm_mode = None
     pb.arm_profiles = {}
 
@@ -618,6 +619,7 @@ def setup_public_light(ufp: MockUFPFixture) -> None:
     pb.lights = public_bootstrap.lights
     pb.relays = {}
     pb.sirens = {}
+    pb.fobs = {}
     pb.arm_mode = None
     pb.arm_profiles = {}
 
@@ -648,6 +650,7 @@ def setup_public_camera(ufp: MockUFPFixture) -> None:
     pb.cameras = public_bootstrap.cameras
     pb.relays = {}
     pb.sirens = {}
+    pb.fobs = {}
     pb.arm_mode = None
     pb.arm_profiles = {}