diff --git a/custom_components/meria/sensor.py b/custom_components/meria/sensor.py
index 1c1a3c0..7990148 100644
--- a/custom_components/meria/sensor.py
+++ b/custom_components/meria/sensor.py
@@ -54,7 +54,11 @@ def unique_id(self):
 
     @property
     def device_class(self):
-        return DEVICE_CLASS_MONETARY
+        return SensorDeviceClass.MONETARY
+
+    @property
+    def state_class(self):
+        return SensorStateClass.MEASUREMENT
 
     @property
     def unit_of_measurement(self):