diff --git a/app/src/main/java/com/example/greenwatch/AccelerometerActivity.java b/app/src/main/java/com/example/greenwatch/AccelerometerActivity.java
index 9ee6d6a..873a971 100644
--- a/app/src/main/java/com/example/greenwatch/AccelerometerActivity.java
+++ b/app/src/main/java/com/example/greenwatch/AccelerometerActivity.java
@@ -70,7 +70,6 @@ public class AccelerometerActivity extends AppCompatActivity implements SensorEv
             @Override
             public void onChanged(List<Device> devices) {
                 deviceListAdapter.setDevices(devices);
-                Toast.makeText(AccelerometerActivity.this, "onChanged", Toast.LENGTH_LONG).show();
             }
         });
 
@@ -81,6 +80,18 @@ public class AccelerometerActivity extends AppCompatActivity implements SensorEv
             }
         });
 
+        mAccelerometerViewModel.getStartAlarmRecording().observe(this, new Observer<Boolean>() {
+            @Override
+            public void onChanged(Boolean aBoolean) {
+                if (aBoolean) {
+                    Toast.makeText(AccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                }
+                else {
+                    Toast.makeText(AccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                }
+            }
+        });
+
         mAccelerometerViewModel.getMovementDetectedValue().observe(this, new Observer<Boolean>() {
             @Override
             public void onChanged(Boolean aBoolean) {
diff --git a/app/src/main/java/com/example/greenwatch/MainActivity.java b/app/src/main/java/com/example/greenwatch/MainActivity.java
index 00ebdbf..915d312 100644
--- a/app/src/main/java/com/example/greenwatch/MainActivity.java
+++ b/app/src/main/java/com/example/greenwatch/MainActivity.java
@@ -62,7 +62,6 @@ public class MainActivity extends AppCompatActivity {
             @Override
             public void onChanged(List<Device> devices) {
                 deviceListAdapter.setDevices(devices);
-                Toast.makeText(MainActivity.this, "onChanged", Toast.LENGTH_LONG).show();
             }
         });
 
@@ -73,6 +72,18 @@ public class MainActivity extends AppCompatActivity {
             }
         });
 
+        mMainActivityViewModel.getStartAlarmRecording().observe(this, new Observer<Boolean>() {
+            @Override
+            public void onChanged(Boolean aBoolean) {
+                if (aBoolean) {
+                    Toast.makeText(MainActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                }
+                else {
+                    Toast.makeText(MainActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                }
+            }
+        });
+
         audiodetectionButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -89,7 +100,6 @@ public class MainActivity extends AppCompatActivity {
                 else {
                     mMainActivityViewModel.accessRequestCamera(MainActivity.this);
                 }
-
             }
         });
         accelerometerButton.setOnClickListener(new View.OnClickListener() {
diff --git a/app/src/main/java/com/example/greenwatch/VideodetectionActivity.java b/app/src/main/java/com/example/greenwatch/VideodetectionActivity.java
index cd119a2..e6a7f95 100644
--- a/app/src/main/java/com/example/greenwatch/VideodetectionActivity.java
+++ b/app/src/main/java/com/example/greenwatch/VideodetectionActivity.java
@@ -62,7 +62,6 @@ public class VideodetectionActivity extends AppCompatActivity {
             @Override
             public void onChanged(List<Device> devices) {
                 deviceListAdapter.setDevices(devices);
-                Toast.makeText(VideodetectionActivity.this, "onChanged", Toast.LENGTH_LONG).show();
             }
         });
 
@@ -73,6 +72,18 @@ public class VideodetectionActivity extends AppCompatActivity {
             }
         });
 
+        mVideoDetectionViewModel.getStartAlarmRecording().observe(this, new Observer<Boolean>() {
+            @Override
+            public void onChanged(Boolean aBoolean) {
+                if (aBoolean) {
+                    Toast.makeText(VideodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                }
+                else {
+                    Toast.makeText(VideodetectionActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                }
+            }
+        });
+
         mVideoDetectionViewModel.getVideoAlarmDetectedValue().observe(this, new Observer<Boolean>() {
             @Override
             public void onChanged(Boolean aBoolean) {
diff --git a/app/src/main/java/com/example/greenwatch/repositories/DeviceRepository.java b/app/src/main/java/com/example/greenwatch/repositories/DeviceRepository.java
index 11a463b..6df1250 100644
--- a/app/src/main/java/com/example/greenwatch/repositories/DeviceRepository.java
+++ b/app/src/main/java/com/example/greenwatch/repositories/DeviceRepository.java
@@ -17,10 +17,12 @@ public class DeviceRepository {
 
     private final int maxAlarmHistoryListSize = 20;
     private final String delimiter = ", ";
-    private final String SensorStatusKey = "An";
+    private final String sensorStatusKey = "An";
     private String localDeviceUUID;
     private static DeviceRepository deviceRepositoryInstance;
     private WiFiCommunication mWiFiCommunication;
+    private boolean startAlarmRecordingValue;
+    private MutableLiveData<Boolean> startAlarmRecording = new MutableLiveData<>();
     private MutableLiveData<List<Device>> deviceList = new MutableLiveData<>();
     private MutableLiveData<List<Device>> alarmHistoryList = new MutableLiveData<>();
     private HashMap<String, Device> connectedDevicesList = new HashMap<>();
@@ -29,6 +31,7 @@ public class DeviceRepository {
 
     private DeviceRepository() {
         setLocalDeviceUUID();
+        startAlarmRecordingValue = false;
     }
 
     public static synchronized DeviceRepository getInstance() {
@@ -52,11 +55,21 @@ public class DeviceRepository {
         return alarmHistoryList;
     }
 
+    public MutableLiveData<Boolean> getStartAlarmRecording() {
+        setMutableLiveDataStartAlarmRecording();
+        return startAlarmRecording;
+    }
+
     public void createNewDevice(String timeStamp, String deviceID, boolean sensorStatus, String sensorType, int sensorMassage){
         Device newDevice = new Device(timeStamp, deviceID, sensorStatus, sensorType, sensorMassage);
         if (sensorStatus) {
             setAlarmHistoryDeviceList(newDevice);
         }
+        boolean newStartAlarmRecordingValue = checkDeviceStatus();
+        if (startAlarmRecordingValue != newStartAlarmRecordingValue) {
+            startAlarmRecordingValue = newStartAlarmRecordingValue;
+            setMutableLiveDataStartAlarmRecording();
+        }
         addToConnectedDeviceList(newDevice.getDeviceID(), newDevice);
         setMutableLiveDataDeviceList();
     }
@@ -124,6 +137,11 @@ public class DeviceRepository {
                 setAlarmHistoryDeviceList(device);
             }
             device.setSensorStatus(sensorStatus);
+            boolean newStartAlarmRecordingValue = checkDeviceStatus();
+            if (startAlarmRecordingValue != newStartAlarmRecordingValue) {
+                startAlarmRecordingValue = newStartAlarmRecordingValue;
+                setMutableLiveDataStartAlarmRecording();
+            }
             addToConnectedDeviceList(checkedDeviceID, device);
             setMutableLiveDataDeviceList();
         }
@@ -177,6 +195,11 @@ public class DeviceRepository {
                 setAlarmHistoryDeviceList(device);
             }
             device.setSensorStatus(sensorStatus);
+            boolean newStartAlarmRecordingValue = checkDeviceStatus();
+            if (startAlarmRecordingValue != newStartAlarmRecordingValue) {
+                startAlarmRecordingValue = newStartAlarmRecordingValue;
+                setMutableLiveDataStartAlarmRecording();
+            }
             addToConnectedDeviceList(checkedDeviceID, device);
             setMutableLiveDataDeviceList();
 
@@ -245,6 +268,10 @@ public class DeviceRepository {
         alarmHistoryList.setValue(alarmHistoryDeviceList);
     }
 
+    private void setMutableLiveDataStartAlarmRecording() {
+        startAlarmRecording.setValue(startAlarmRecordingValue);
+    }
+
     private void addToConnectedDeviceList(String key, Device device) {
         connectedDevicesList.put(key, device);
         if (key.equals(checkDeviceID(localDeviceUUID))) {
@@ -272,7 +299,7 @@ public class DeviceRepository {
     }
 
     private boolean convertSensorStatus(String status) {
-        return status.equals(SensorStatusKey);
+        return status.equals(sensorStatusKey);
     }
 
     private void setAlarmHistoryDeviceList(Device device) {
@@ -283,4 +310,13 @@ public class DeviceRepository {
         alarmHistoryDeviceList.add(0, alarmHistoryDevice);
         setMutableLiveDataAlarmHistoryList();
     }
+
+    private boolean checkDeviceStatus() {
+        for (Device device : connectedDevicesList.values()) {
+            if (device.getSensorStatus()) {
+                return true;
+            }
+        }
+        return false;
+    }
 }
diff --git a/app/src/main/java/com/example/greenwatch/viewmodels/AccelerometerViewModel.java b/app/src/main/java/com/example/greenwatch/viewmodels/AccelerometerViewModel.java
index bd767ab..74070fc 100644
--- a/app/src/main/java/com/example/greenwatch/viewmodels/AccelerometerViewModel.java
+++ b/app/src/main/java/com/example/greenwatch/viewmodels/AccelerometerViewModel.java
@@ -17,6 +17,7 @@ public class AccelerometerViewModel extends ViewModel implements ViewModelInterf
     private MutableLiveData<List<Device>> mDeviceList;
     private MutableLiveData<Boolean> mMovementDetected = new MutableLiveData<>();
     private MutableLiveData<List<Device>> mAlarmHistoryList;
+    private MutableLiveData<Boolean> mStartAlarmRecording;
     private DeviceRepository mDeviceRepository;
     private ArrayList<Float> Gesamt_be;
     int arraySize = 500;
@@ -32,6 +33,7 @@ public class AccelerometerViewModel extends ViewModel implements ViewModelInterf
             mDeviceRepository = DeviceRepository.getInstance();
             mDeviceList = mDeviceRepository.getConnectedDeviceList();
             mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
+            mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
         }
         initGesamtBE();
         mMovementDetected.setValue(false);
@@ -96,6 +98,11 @@ public class AccelerometerViewModel extends ViewModel implements ViewModelInterf
         return mAlarmHistoryList;
     }
 
+    @Override
+    public LiveData<Boolean> getStartAlarmRecording() {
+        return mStartAlarmRecording;
+    }
+
     @Override
     public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
         mDeviceRepository.updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
diff --git a/app/src/main/java/com/example/greenwatch/viewmodels/MainActivityViewModel.java b/app/src/main/java/com/example/greenwatch/viewmodels/MainActivityViewModel.java
index cce6ee0..8f74ef1 100644
--- a/app/src/main/java/com/example/greenwatch/viewmodels/MainActivityViewModel.java
+++ b/app/src/main/java/com/example/greenwatch/viewmodels/MainActivityViewModel.java
@@ -20,8 +20,9 @@ public class MainActivityViewModel extends ViewModel implements ViewModelInterfa
 
     private MutableLiveData<List<Device>> mDeviceList;
     private MutableLiveData<List<Device>> mAlarmHistoryList;
+    private MutableLiveData<Boolean> mStartAlarmRecording;
     private DeviceRepository mDeviceRepository;
-    private static final int RECHTEANFORDERUNG_KAMERA = 10;
+    private static final int RIGHTS_REQUEST_CAMERA = 10;
 
     @Override
     public void init() {
@@ -37,6 +38,7 @@ public class MainActivityViewModel extends ViewModel implements ViewModelInterfa
         mDeviceRepository.createNewDevice(mDeviceRepository.getSystemTimeStamp(), mDeviceRepository.getLocalDeviceUUID(), false, "No Sensor selected", 0);
         mDeviceList = mDeviceRepository.getConnectedDeviceList();
         mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
+        mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
     }
 
     public boolean isCameraAccessAllowed(Context context) {
@@ -44,7 +46,7 @@ public class MainActivityViewModel extends ViewModel implements ViewModelInterfa
     }
 
     public void accessRequestCamera(Activity activity) {
-        ActivityCompat.requestPermissions(activity, new String[]{android.Manifest.permission.CAMERA}, RECHTEANFORDERUNG_KAMERA);
+        ActivityCompat.requestPermissions(activity, new String[]{android.Manifest.permission.CAMERA}, RIGHTS_REQUEST_CAMERA);
     }
 
     @Override
@@ -57,6 +59,11 @@ public class MainActivityViewModel extends ViewModel implements ViewModelInterfa
         return mAlarmHistoryList;
     }
 
+    @Override
+    public LiveData<Boolean> getStartAlarmRecording() {
+        return mStartAlarmRecording;
+    }
+
     @Override
     public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
         mDeviceRepository.updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
diff --git a/app/src/main/java/com/example/greenwatch/viewmodels/VideodetectionViewModel.java b/app/src/main/java/com/example/greenwatch/viewmodels/VideodetectionViewModel.java
index 1fa0018..1a252c5 100644
--- a/app/src/main/java/com/example/greenwatch/viewmodels/VideodetectionViewModel.java
+++ b/app/src/main/java/com/example/greenwatch/viewmodels/VideodetectionViewModel.java
@@ -19,6 +19,7 @@ public class VideodetectionViewModel extends ViewModel implements ViewModelInter
     private MutableLiveData<List<Device>> mDeviceList;
     private MutableLiveData<Boolean> mVideoAlarmDetected;
     private MutableLiveData<List<Device>> mAlarmHistoryList;
+    private MutableLiveData<Boolean> mStartAlarmRecording;
     private DeviceRepository mDeviceRepository;
     private CameraSensor mCameraSensor;
 
@@ -41,6 +42,9 @@ public class VideodetectionViewModel extends ViewModel implements ViewModelInter
         if (mAlarmHistoryList == null) {
             mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
         }
+        if (mStartAlarmRecording == null) {
+            mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
+        }
         if (mVideoAlarmDetected == null) {
             mVideoAlarmDetected = mCameraSensor.getVideoAlarmDetectedValue();
         }
@@ -64,6 +68,11 @@ public class VideodetectionViewModel extends ViewModel implements ViewModelInter
         return mAlarmHistoryList;
     }
 
+    @Override
+    public LiveData<Boolean> getStartAlarmRecording() {
+        return mStartAlarmRecording;
+    }
+
     @Override
     public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
         mDeviceRepository.updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
diff --git a/app/src/main/java/com/example/greenwatch/viewmodels/ViewModelInterface.java b/app/src/main/java/com/example/greenwatch/viewmodels/ViewModelInterface.java
index 35372c3..eb290b4 100644
--- a/app/src/main/java/com/example/greenwatch/viewmodels/ViewModelInterface.java
+++ b/app/src/main/java/com/example/greenwatch/viewmodels/ViewModelInterface.java
@@ -10,6 +10,7 @@ public interface ViewModelInterface {
     void init();
     LiveData<List<Device>> getConnectedDeviceList();
     LiveData<List<Device>> getAlarmHistoryList();
+    LiveData<Boolean> getStartAlarmRecording();
     void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage);
     void setTimeStamp(String deviceID, String timeStamp);
     String getTimeStamp(String deviceID);