diff --git a/homeassistant/components/zha/sensor.py b/homeassistant/components/zha/sensor.py
index b2d246c3095..fb4b577ff61 100644
--- a/homeassistant/components/zha/sensor.py
+++ b/homeassistant/components/zha/sensor.py
@@ -2,7 +2,10 @@
 import logging
 
 from homeassistant.core import callback
-from homeassistant.components.sensor import DOMAIN
+from homeassistant.components.sensor import (
+    DOMAIN, DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_ILLUMINANCE,
+    DEVICE_CLASS_TEMPERATURE, DEVICE_CLASS_PRESSURE, DEVICE_CLASS_POWER
+)
 from homeassistant.const import (
     TEMP_CELSIUS, POWER_WATT, ATTR_UNIT_OF_MEASUREMENT
 )
@@ -11,13 +14,12 @@ from .core.const import (
     DATA_ZHA, DATA_ZHA_DISPATCHERS, ZHA_DISCOVERY_NEW, HUMIDITY, TEMPERATURE,
     ILLUMINANCE, PRESSURE, METERING, ELECTRICAL_MEASUREMENT,
     GENERIC, SENSOR_TYPE, ATTRIBUTE_CHANNEL, ELECTRICAL_MEASUREMENT_CHANNEL,
-    SIGNAL_ATTR_UPDATED, SIGNAL_STATE_ATTR)
+    SIGNAL_ATTR_UPDATED, SIGNAL_STATE_ATTR, UNKNOWN)
 from .entity import ZhaEntity
 
 PARALLEL_UPDATES = 5
 _LOGGER = logging.getLogger(__name__)
 
-
 # Formatter functions
 def pass_through_formatter(value):
     """No op update function."""
@@ -91,6 +93,16 @@ FORCE_UPDATE_REGISTRY = {
     ELECTRICAL_MEASUREMENT: False
 }
 
+DEVICE_CLASS_REGISTRY = {
+    UNKNOWN: None,
+    HUMIDITY: DEVICE_CLASS_HUMIDITY,
+    TEMPERATURE: DEVICE_CLASS_TEMPERATURE,
+    PRESSURE: DEVICE_CLASS_PRESSURE,
+    ILLUMINANCE: DEVICE_CLASS_ILLUMINANCE,
+    METERING: DEVICE_CLASS_POWER,
+    ELECTRICAL_MEASUREMENT: DEVICE_CLASS_POWER
+}
+
 
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
@@ -155,6 +167,10 @@ class Sensor(ZhaEntity):
         self._channel = self.cluster_channels.get(
             CHANNEL_REGISTRY.get(self._sensor_type, ATTRIBUTE_CHANNEL)
         )
+        self._device_class = DEVICE_CLASS_REGISTRY.get(
+            self._sensor_type,
+            None
+        )
 
     async def async_added_to_hass(self):
         """Run when about to be added to hass."""
@@ -165,6 +181,11 @@ class Sensor(ZhaEntity):
             self._channel, SIGNAL_STATE_ATTR,
             self.async_update_state_attribute)
 
+    @property
+    def device_class(self) -> str:
+        """Return device class from component DEVICE_CLASSES."""
+        return self._device_class
+
     @property
     def unit_of_measurement(self):
         """Return the unit of measurement of this entity."""