diff --git a/simulation/devices.py b/simulation/devices.py
index b5f04c5..71cdcab 100644
--- a/simulation/devices.py
+++ b/simulation/devices.py
@@ -11,7 +11,7 @@ COLOR_SHELLY = colored.fg("light_magenta")
 COLOR_POWERPLUG = colored.fg("light_cyan")
 COLOR_LIGHT_ACTIVE = colored.fg("yellow")
 COLOR_LIGHT_PASSIVE = COLOR_LIGHT_ACTIVE + colored.attr("dim")
-COLOR_MOTION_SENSOR = colored.fg("dark_orange_3b")
+COLOR_WARNINGS = colored.fg("dark_orange_3b")
 COLOR_HEATING_VALVE = colored.fg("red")
 COLOR_REMOTE = colored.fg("green")
 
@@ -125,8 +125,10 @@ class shelly(base):
     KEY_INPUT_1 = "input/1"
     KEY_LONGPUSH_0 = "longpush/0"
     KEY_LONGPUSH_1 = "longpush/1"
+    KEY_TEMPERATURE = "temperature"
+    KEY_OVERTEMPERATURE = "overtemperature"
     #
-    BOOL_KEYS = [KEY_OUTPUT_0, KEY_OUTPUT_1, KEY_INPUT_0, KEY_INPUT_1, KEY_LONGPUSH_0, KEY_LONGPUSH_1, ]
+    BOOL_KEYS = [KEY_OUTPUT_0, KEY_OUTPUT_1, KEY_INPUT_0, KEY_INPUT_1, KEY_LONGPUSH_0, KEY_LONGPUSH_1, KEY_OVERTEMPERATURE, ]
     #
     INPUT_FUNC_OUT1_FOLLOW = "out1_follow"
     INPUT_FUNC_OUT1_TRIGGER = "out1_trigger"
@@ -139,11 +141,13 @@ class shelly(base):
         "get_input_0", "toggle_input_0",
         "get_input_1", "toggle_input_1",
         "trigger_input_0_longpress", "trigger_input_1_longpress",
+        "toggle_overtemperature",
     ]
 
     def __init__(self, mqtt_client, topic, input_0_func=None, input_1_func=None, output_0_auto_off=None):
         super().__init__(mqtt_client, topic, default_values={self.KEY_OUTPUT_0: False, self.KEY_OUTPUT_1: False,
-                                                             self.KEY_INPUT_0: False, self.KEY_INPUT_1: False})
+                                                             self.KEY_INPUT_0: False, self.KEY_INPUT_1: False,
+                                                             self.KEY_TEMPERATURE: 35.2, self.KEY_OVERTEMPERATURE: False})
         #
         self.__input_0_func = input_0_func
         self.__input_1_func = input_1_func
@@ -154,6 +158,8 @@ class shelly(base):
         # publish state changes
         self.add_callback(self.KEY_OUTPUT_0, None, self.__send__, True)
         self.add_callback(self.KEY_OUTPUT_1, None, self.__send__, True)
+        self.add_callback(self.KEY_TEMPERATURE, None, self.__send__, True)
+        self.add_callback(self.KEY_OVERTEMPERATURE, None, self.__send__, True)
         #
         if self.__output_0_auto_off__ is not None:
             self.__delayed_off__ = task.delayed(float(self.__output_0_auto_off__), self.__auto_off__, self.KEY_OUTPUT_0)
@@ -164,6 +170,11 @@ class shelly(base):
         #
         self.__tx__((self.KEY_OUTPUT_0, self.KEY_OUTPUT_1))
 
+    def __int_to_ext__(self, key, value):
+        if key == self.KEY_OVERTEMPERATURE:
+            return int(value)
+        return super().__int_to_ext__(key, value)
+
     def __rx__(self, client, userdata, message):
         value = self.__payload_filter__(message.payload)
         if message.topic.startswith(self.topic) and message.topic.endswith("/command"):
@@ -235,6 +246,11 @@ class shelly(base):
                 time.sleep(0.1)
                 self.set(self.KEY_INPUT_1, not self[self.KEY_INPUT_1])
                 self.set(self.KEY_LONGPUSH_1, False)
+            elif command == self.COMMANDS[10]:
+                if self.get(self.KEY_OVERTEMPERATURE):
+                    self.warning_state_off()
+                else:
+                    self.warning_state_on()
             else:
                 print("%s: not yet implemented!" % command)
         else:
@@ -246,6 +262,14 @@ class shelly(base):
             channel = "(%s%s)" % (self.names.get(key, key), info)
             self.print_formatted_light(COLOR_SHELLY, value, channel)
 
+    def warning_state_on(self):
+        self.set(self.KEY_TEMPERATURE, 78.3)
+        self.set(self.KEY_OVERTEMPERATURE, True)
+
+    def warning_state_off(self):
+        self.set(self.KEY_TEMPERATURE, 34.1)
+        self.set(self.KEY_OVERTEMPERATURE, False)
+
 
 class my_powerplug(base):
     KEY_OUTPUT_0 = "state"
@@ -312,8 +336,11 @@ class silvercrest_powerplug(base):
             self.set(self.KEY_OUTPUT_0, self.__ext_to_int__(self.KEY_OUTPUT_0, state))
 
     def __tx__(self, keys_changed):
+        data = {}
+        for key in self:
+            data[key] = self.__int_to_ext__(key, self[key])
         for key in keys_changed:
-            self.mqtt_client.send(self.topic + '/' + key, self.__int_to_ext__(self.KEY_OUTPUT_0, self.get(self.KEY_OUTPUT_0)))
+            self.mqtt_client.send(self.topic, json.dumps(data))
 
     def command(self, command):
         if command in self.COMMANDS:
@@ -454,20 +481,23 @@ class brennenstuhl_heating_valve(base):
     #
     KEY_TEMPERATURE_SETPOINT = "current_heating_setpoint"
     KEY_TEMPERATURE = "local_temperature"
+    KEY_BATTERY = "battery"
     #
     COMMANDS = [
-        "get_temperature_setpoint", "set_temperature_setpoint", "set_local_temperature",
+        "get_temperature_setpoint", "set_temperature_setpoint", "set_local_temperature", "set_battery",
     ]
 
     def __init__(self, mqtt_client, topic):
         super().__init__(mqtt_client, topic, default_values={
             self.KEY_TEMPERATURE_SETPOINT: 20,
             self.KEY_TEMPERATURE: 20.7,
+            self.KEY_BATTERY: 97,
         })
         #
         self.add_callback(self.KEY_TEMPERATURE_SETPOINT, None, self.print_formatted, True)
         self.add_callback(self.KEY_TEMPERATURE_SETPOINT, None, self.__send__, True)
         self.add_callback(self.KEY_TEMPERATURE, None, self.__send__, True)
+        self.add_callback(self.KEY_BATTERY, None, self.__send__, True)
         #
         self.__tx__((self.KEY_TEMPERATURE_SETPOINT, ))
 
@@ -495,6 +525,8 @@ class brennenstuhl_heating_valve(base):
                 self.set(self.KEY_TEMPERATURE_SETPOINT, self.__command_float_value__(value))
             elif command == self.COMMANDS[2]:
                 self.set(self.KEY_TEMPERATURE, self.__command_float_value__(value))
+            elif command == self.COMMANDS[3]:
+                self.set(self.KEY_BATTERY, self.__command_float_value__(value))
 
     def print_formatted(self, device, key, value):
         if key == self.KEY_TEMPERATURE_SETPOINT:
@@ -503,6 +535,12 @@ class brennenstuhl_heating_valve(base):
             perc = 0 if perc < 0 else perc
             self.print_formatted_percent(COLOR_HEATING_VALVE, '\u03d1', perc, "%4.1f°C" % value, "")
 
+    def warning_state_on(self):
+        self.set(self.KEY_BATTERY, 7)
+
+    def warning_state_off(self):
+        self.set(self.KEY_BATTERY, 97)
+
 
 class videv_light(base_videv):
     KEY_OUTPUT_0 = "state"
@@ -733,8 +771,44 @@ class videv_heating(base_videv):
                 self.print_formatted_percent(COLOR_GUI_ACTIVE, 't', perc, '%3d%%' % perc, '(%.1f)' % disp_value)
 
 
+class videv_warnings(base):
+    KEY_WARNING = "html_short"
+    #
+    COMMANDS = [
+        "get_warnings",
+    ]
+
+    def __init__(self, mqtt_client, topic):
+        super().__init__(mqtt_client, topic, dict.fromkeys([self.KEY_WARNING]))
+        #
+        self.add_callback(self.KEY_WARNING, None, self.print_formatted, True)
+
+    def __rx__(self, client, userdata, message):
+        if message.topic == self.topic + "/" + self.KEY_WARNING:
+            self.set(self.KEY_WARNING, message.payload.decode("utf-8"))
+
+    def command(self, command):
+        if command in self.COMMANDS:
+            if command == self.COMMANDS[0]:
+                self.print_formatted(self, self.KEY_WARNING, self.get(self.KEY_WARNING))
+            else:
+                print("%s: not yet implemented!" % command)
+        else:
+            print("Unknown command!")
+
+    def print_formatted(self, device, key, value):
+        if OUTPUT_ACTIVE:
+            value = value.replace("<br><br>", "\n")
+            value = value.replace("<br>", " - ")
+            print(COLOR_WARNINGS + "** WARNINGS: *************************************************")
+            for line in value.split("\n"):
+                print("   ", line)
+            print("**************************************************************" + colored.attr("reset"))
+
 # class silvercrest_motion_sensor(base):
 #     KEY_OCCUPANCY = "occupancy"
+#     KEY_BATTERY = "battery"
+#     KEY_BATTERY_LOW = "battery_low"
 #     COMMANDS = ['motion']
 
 #     def __init__(self, mqtt_client, topic):
@@ -761,9 +835,17 @@ class videv_heating(base_videv):
 #         if value is not None:
 #             print_light(COLOR_MOTION_SENSOR, value, self.topic, "")
 
+#    def warning_state_on(self):
+#        self.set(self.KEY_BATTERY, 7)
+#        self.set(self.KEY_BATTERY_LOW, True)
+#    def warning_state_off(self):
+#        self.set(self.KEY_BATTERY, 97)
+#        self.set(self.KEY_BATTERY_LOW, False)
+
 
 # class tradfri_button(base):
 #     KEY_ACTION = "action"
+#     KEY_BATTERY = "battery"
 #     #
 #     ACTION_TOGGLE = "toggle"
 #     ACTION_BRIGHTNESS_UP = "brightness_up_click"
@@ -800,6 +882,11 @@ class videv_heating(base_videv):
 #                 time.sleep(value or 0.5)
 #                 action = '_'.join(action.split('_')[:-1] + ['release'])
 #                 self.mqtt_client.send(self.topic, json.dumps({self.KEY_ACTION: action}))
+#
+#    def warning_state_on(self):
+#        self.set(self.KEY_BATTERY, 7)
+#    def warning_state_off(self):
+#        self.set(self.KEY_BATTERY, 97)
 
 
 # class remote(base):
diff --git a/simulation/rooms.py b/simulation/rooms.py
index 2470e6a..b7eda45 100644
--- a/simulation/rooms.py
+++ b/simulation/rooms.py
@@ -1,6 +1,6 @@
 import config
 from simulation.devices import shelly, silvercrest_powerplug, tradfri_light, my_powerplug, brennenstuhl_heating_valve
-from simulation.devices import videv_light, videv_heating
+from simulation.devices import videv_light, videv_heating, videv_warnings
 import inspect
 
 
@@ -266,3 +266,4 @@ class house(base):
         self.ffw = ffw(mqtt_client)
         self.ffe = ffe(mqtt_client)
         self.stairway = stairway(mqtt_client)
+        self.warnings = videv_warnings(mqtt_client, config.TOPIC_WARNINGS)
diff --git a/smart_brain_test.py b/smart_brain_test.py
index 3676a94..22c424e 100644
--- a/smart_brain_test.py
+++ b/smart_brain_test.py
@@ -6,6 +6,7 @@ import sys
 from tests.all import test_smarthome
 
 # TODO: Extend tests in simulation
+#         - Test: Check of warning messages for battery and overtemperature
 #         - Switching button functions (gfw_dirk, ffe.sleep)
 #         - Brightness button functions (gfw.dirk, ffe.sleep)
 #         - Synch functions of amplifier with spotify, mpd
diff --git a/tests/all.py b/tests/all.py
index ed39076..3be5b2b 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -83,7 +83,7 @@ class test_smarthome(object):
         system_info[jsonlog.SYSI_USERNAME] = getpass.getuser()
         system_info[jsonlog.SYSI_PATH] = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
 
-        self.tcl = report.testSession(['__unittest__', 'unittest', ROOT_LOGGER_NAME])
+        self.tcl = report.testSession(['__unittest__', ROOT_LOGGER_NAME])
         self.tcl[jsonlog.MAIN_KEY_SYSTEM_INFO] = system_info
         self.tcl["testcase_names"] = report.TCEL_NAMES