diff --git a/homeassistant/components/yolink/sensor.py b/homeassistant/components/yolink/sensor.py
index cf7cd2a16d9b..d6f0c620c7fb 100644
--- a/homeassistant/components/yolink/sensor.py
+++ b/homeassistant/components/yolink/sensor.py
@@ -212,6 +212,7 @@ SENSOR_TYPES: tuple[YoLinkSensorEntityDescription, ...] = (
         key="battery",
         device_class=SensorDeviceClass.BATTERY,
         native_unit_of_measurement=PERCENTAGE,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.MEASUREMENT,
         exists_fn=lambda device: device.device_type in BATTERY_POWER_SENSOR,
         should_update_entity=lambda value: value is not None,
@@ -251,9 +252,11 @@ SENSOR_TYPES: tuple[YoLinkSensorEntityDescription, ...] = (
     # mcu temperature
     YoLinkSensorEntityDescription(
         key="devTemperature",
+        translation_key="device_temperature",
         device_class=SensorDeviceClass.TEMPERATURE,
         native_unit_of_measurement=UnitOfTemperature.CELSIUS,
         state_class=SensorStateClass.MEASUREMENT,
+        entity_category=EntityCategory.DIAGNOSTIC,
         exists_fn=lambda device: device.device_type in MCU_DEV_TEMPERATURE_SENSOR,
         should_update_entity=lambda value: value is not None,
         value=lambda device, data: data.get("devTemperature"),
diff --git a/homeassistant/components/yolink/strings.json b/homeassistant/components/yolink/strings.json
index ee6d6c23c417..449a5a7028b4 100644
--- a/homeassistant/components/yolink/strings.json
+++ b/homeassistant/components/yolink/strings.json
@@ -67,6 +67,9 @@
       "current_power": {
         "name": "Current power"
       },
+      "device_temperature": {
+        "name": "Device temperature"
+      },
       "power_consumption": {
         "name": "Power consumption"
       },