diff --git a/cbpi/extension/dummysensor/__init__.py b/cbpi/extension/dummysensor/__init__.py
index 1aab897..34c9c25 100644
--- a/cbpi/extension/dummysensor/__init__.py
+++ b/cbpi/extension/dummysensor/__init__.py
@@ -1,37 +1,35 @@
 # -*- coding: utf-8 -*-
 import asyncio
 import random
-import re
-import random
-from aiohttp import web
-from cbpi.api import *
+
+from cbpi.api import parameters, CBPiSensor
 
 
 @parameters([])
 class CustomSensor(CBPiSensor):
-    
+
     def __init__(self, cbpi, id, props):
         super(CustomSensor, self).__init__(cbpi, id, props)
         self.value = 0
-    async def run(self):
 
-        while self.running == True:
-            self.value = random.randint(10,100)
+    async def run(self):
+        while self.running:
+            self.value = random.randint(10, 100)
             self.log_data(self.value)
-            
+
             self.push_update(self.value)
             await asyncio.sleep(1)
+
     def get_state(self):
         return dict(value=self.value)
 
 
 def setup(cbpi):
-
     '''
-    This method is called by the server during startup 
+    This method is called by the server during startup
     Here you need to register your plugins at the server
-    
-    :param cbpi: the cbpi core 
-    :return: 
+
+    :param cbpi: the cbpi core
+    :return:
     '''
     cbpi.plugin.register("CustomSensor", CustomSensor)
diff --git a/cbpi/extension/mqtt_sensor/__init__.py b/cbpi/extension/mqtt_sensor/__init__.py
index 4b6f389..481beb0 100644
--- a/cbpi/extension/mqtt_sensor/__init__.py
+++ b/cbpi/extension/mqtt_sensor/__init__.py
@@ -1,28 +1,27 @@
 # -*- coding: utf-8 -*-
 import asyncio
-import random
-import re
-from aiohttp import web
-from cbpi.api import *
+
+from cbpi.api import parameters, Property, CBPiSensor
 
 
 @parameters([Property.Text(label="Topic", configurable=True)])
 class MQTTSensor(CBPiSensor):
-    
+
     async def on_message(self, message):
         try:
-            self.value = message
+            self.value = float(message)
             self.log_data(self.value)
-            self.push_update(message)
+            self.push_update(self.value)
         except Exception as e:
             print(e)
 
     def __init__(self, cbpi, id, props):
         super(MQTTSensor, self).__init__(cbpi, id, props)
         self.mqtt_task = self.cbpi.satellite.subcribe(self.props.Topic, self.on_message)
-        
+        self.value: int = 0
+
     async def run(self):
-        while self.running == True:
+        while self.running:
             await asyncio.sleep(1)
 
     def get_state(self):
@@ -36,14 +35,14 @@ class MQTTSensor(CBPiSensor):
             except asyncio.CancelledError:
                 pass
 
-def setup(cbpi):
 
+def setup(cbpi):
     '''
-    This method is called by the server during startup 
+    This method is called by the server during startup
     Here you need to register your plugins at the server
-    
-    :param cbpi: the cbpi core 
-    :return: 
+
+    :param cbpi: the cbpi core
+    :return:
     '''
     if cbpi.static_config.get("mqtt", False) is True:
         cbpi.plugin.register("MQTTSensor", MQTTSensor)