diff --git a/homeassistant/components/ads/binary_sensor.py b/homeassistant/components/ads/binary_sensor.py
index 1ee56cac9d3..c83837dcd5f 100644
--- a/homeassistant/components/ads/binary_sensor.py
+++ b/homeassistant/components/ads/binary_sensor.py
@@ -44,6 +44,7 @@ class AdsBinarySensor(BinarySensorDevice):
     def __init__(self, ads_hub, name, ads_var, device_class):
         """Initialize ADS binary sensor."""
         self._name = name
+        self._unique_id = ads_var
         self._state = False
         self._device_class = device_class or 'moving'
         self._ads_hub = ads_hub
@@ -66,6 +67,11 @@ class AdsBinarySensor(BinarySensorDevice):
         """Return the default name of the binary sensor."""
         return self._name
 
+    @property
+    def unique_id(self):
+        """Return an unique identifier for this entity."""
+        return self._unique_id
+
     @property
     def device_class(self):
         """Return the device class."""
diff --git a/homeassistant/components/ads/light.py b/homeassistant/components/ads/light.py
index 10df4c0bf72..a2d54fe7d4a 100644
--- a/homeassistant/components/ads/light.py
+++ b/homeassistant/components/ads/light.py
@@ -46,6 +46,7 @@ class AdsLight(Light):
         self._on_state = False
         self._brightness = None
         self._name = name
+        self._unique_id = ads_var_enable
         self.ads_var_enable = ads_var_enable
         self.ads_var_brightness = ads_var_brightness
 
@@ -79,6 +80,11 @@ class AdsLight(Light):
         """Return the name of the device if any."""
         return self._name
 
+    @property
+    def unique_id(self):
+        """Return an unique identifier for this entity."""
+        return self._unique_id
+
     @property
     def brightness(self):
         """Return the brightness of the light (0..255)."""
diff --git a/homeassistant/components/ads/sensor.py b/homeassistant/components/ads/sensor.py
index 24515357f5e..50f3fd08d5c 100644
--- a/homeassistant/components/ads/sensor.py
+++ b/homeassistant/components/ads/sensor.py
@@ -55,6 +55,7 @@ class AdsSensor(Entity):
         """Initialize AdsSensor entity."""
         self._ads_hub = ads_hub
         self._name = name
+        self._unique_id = ads_var
         self._value = None
         self._unit_of_measurement = unit_of_measurement
         self.ads_var = ads_var
@@ -84,6 +85,11 @@ class AdsSensor(Entity):
         """Return the name of the entity."""
         return self._name
 
+    @property
+    def unique_id(self):
+        """Return an unique identifier for this entity."""
+        return self._unique_id
+
     @property
     def state(self):
         """Return the state of the device."""
diff --git a/homeassistant/components/ads/switch.py b/homeassistant/components/ads/switch.py
index ecd1e7edc31..ab9e54adaa7 100644
--- a/homeassistant/components/ads/switch.py
+++ b/homeassistant/components/ads/switch.py
@@ -44,6 +44,7 @@ class AdsSwitch(ToggleEntity):
         self._ads_hub = ads_hub
         self._on_state = False
         self._name = name
+        self._unique_id = ads_var
         self.ads_var = ads_var
 
     async def async_added_to_hass(self):
@@ -68,6 +69,11 @@ class AdsSwitch(ToggleEntity):
         """Return the name of the entity."""
         return self._name
 
+    @property
+    def unique_id(self):
+        """Return an unique identifier for this entity."""
+        return self._unique_id
+
     @property
     def should_poll(self):
         """Return False because entity pushes its state to HA."""