diff --git a/custom_components/georide/__init__.py b/custom_components/georide/__init__.py
index cb348f0..389bb1a 100644
--- a/custom_components/georide/__init__.py
+++ b/custom_components/georide/__init__.py
@@ -182,7 +182,7 @@ class GeoRideContext:
         socket.subscribe_device(self.on_device_callback)
         socket.subscribe_position(self.on_position_callback)
         socket.subscribe_alarm(self.on_alarm_callback)
-        socker.subscribe_refresh_tracker(self.on_refresh_tracker_callback)
+        socket.subscribe_refresh_tracker(self.on_refresh_tracker_callback)
         self._socket = socket
 
         socket.init()
@@ -396,7 +396,7 @@ class GeoRideContext:
         """on device callback"""
         _LOGGER.info("On refresh tracker received")
         self._previous_refresh = math.floor(time.time()/60)
-        await self.force_refresh_trackers()
+        self.force_refresh_trackers()
     
         for coordoned_tracker in self._georide_trackers_coordoned:
             tracker_device = coordoned_tracker['tracker_device']
diff --git a/custom_components/georide/sensor.py b/custom_components/georide/sensor.py
index a8b0824..2ed3032 100644
--- a/custom_components/georide/sensor.py
+++ b/custom_components/georide/sensor.py
@@ -32,6 +32,7 @@ async def async_setup_entry(hass, config_entry, async_add_entities): # pylint: d
         entities.append(GeoRideOdometerSensorEntity(coordinator, tracker_device, hass))
         entities.append(GeoRideOdometerKmSensorEntity(coordinator, tracker_device, hass))
         entities.append(GeoRideFixtimeSensorEntity(coordinator, tracker_device))
+        entities.append(GeoRideSpeedSensorEntity(coordinator, tracker_device))        
         if tracker_device.tracker.version > 2:
             entities.append(GeoRideInternalBatterySensorEntity(coordinator, tracker_device))
             entities.append(GeoRideExternalBatterySensorEntity(coordinator, tracker_device))
@@ -155,6 +156,7 @@ class GeoRideSpeedSensorEntity(CoordinatorEntity, SensorEntity):
         self.entity_id = f"{ENTITY_ID_FORMAT.format('speed')}.{tracker_device.tracker.tracker_id}"# pylint: disable=C0301
         self._state = 0
         self._hass = hass
+        self._state_class = "measurement"
 
     @property
     def unique_id(self):
@@ -166,6 +168,10 @@ class GeoRideSpeedSensorEntity(CoordinatorEntity, SensorEntity):
         """state property"""
         return self._tracker_device.tracker.speed
 
+    @property
+    def state_class(self):
+        return self._state_class
+
     @property
     def unit_of_measurement(self):
         """unit of mesurment property"""
@@ -198,8 +204,17 @@ class GeoRideInternalBatterySensorEntity(CoordinatorEntity, SensorEntity):
         self._name = tracker_device.tracker.tracker_name
         self._unit_of_measurement = "V"
         self.entity_id = f"{ENTITY_ID_FORMAT.format('internal_battery_voltage')}.{tracker_device.tracker.tracker_id}"# pylint: disable=C0301
-
         self._state = 0
+        self._state_class = "measurement"
+        self._device_class = "voltage"
+
+    @property
+    def state_class(self):
+        return self._state_class
+
+    @property
+    def device_class(self):
+        return self._device_class
 
     @property
     def entity_category(self):
@@ -247,6 +262,16 @@ class GeoRideExternalBatterySensorEntity(CoordinatorEntity, SensorEntity):
         self._unit_of_measurement = "V"
         self.entity_id = f"{ENTITY_ID_FORMAT.format('external_battery_voltage')}.{tracker_device.tracker.tracker_id}"# pylint: disable=C0301
         self._state = 0
+        self._state_class = "measurement"
+        self._device_class = "voltage"
+
+    @property
+    def state_class(self):
+        return self._state_class
+
+    @property
+    def device_class(self):
+        return self._device_class
 
     @property
     def entity_category(self):