diff --git a/.coveragerc b/.coveragerc
index 44263c15572..b927fd28255 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -39,8 +39,10 @@ omit =
     homeassistant/components/mysensors.py
     homeassistant/components/*/mysensors.py
 
+    homeassistant/components/nest.py
+    homeassistant/components/*/nest.py
+
     homeassistant/components/binary_sensor/arest.py
-    homeassistant/components/binary_sensor/nest.py
     homeassistant/components/binary_sensor/rest.py
     homeassistant/components/browser.py
     homeassistant/components/camera/*
@@ -97,7 +99,6 @@ omit =
     homeassistant/components/sensor/eliqonline.py
     homeassistant/components/sensor/forecast.py
     homeassistant/components/sensor/glances.py
-    homeassistant/components/sensor/nest.py
     homeassistant/components/sensor/netatmo.py
     homeassistant/components/sensor/openweathermap.py
     homeassistant/components/sensor/rest.py
@@ -123,7 +124,6 @@ omit =
     homeassistant/components/thermostat/heatmiser.py
     homeassistant/components/thermostat/homematic.py
     homeassistant/components/thermostat/honeywell.py
-    homeassistant/components/thermostat/nest.py
     homeassistant/components/thermostat/radiotherm.py
 
 
diff --git a/homeassistant/components/binary_sensor/nest.py b/homeassistant/components/binary_sensor/nest.py
index d980205c33c..421a39e51f5 100644
--- a/homeassistant/components/binary_sensor/nest.py
+++ b/homeassistant/components/binary_sensor/nest.py
@@ -23,6 +23,7 @@ BINARY_TYPES = ['fan',
                 'hvac_emer_heat_state',
                 'online']
 
+
 def setup_platform(hass, config, add_devices, discovery_info=None):
     "Setup nest binary sensors from config file"
 
@@ -32,8 +33,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
             for device in structure.devices:
                 for variable in config['monitored_conditions']:
                     if variable in BINARY_TYPES:
-                        add_devices([NestBinarySensor(
-                                                      structure,
+                        add_devices([NestBinarySensor(structure,
                                                       device,
                                                       variable)])
                     else:
@@ -44,9 +44,12 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
             "Connection error logging into the nest web service."
         )
 
+
 class NestBinarySensor(NestSensor):
     """ Represents a Nst Binary sensor. """
 
     @property
     def is_on(self):
+        "Returns is the binary sensor is on or off"
+
         return bool(getattr(self.device, self.variable))
diff --git a/homeassistant/components/sensor/nest.py b/homeassistant/components/sensor/nest.py
index f900d2eba93..ed8052b23d8 100644
--- a/homeassistant/components/sensor/nest.py
+++ b/homeassistant/components/sensor/nest.py
@@ -12,7 +12,6 @@ import homeassistant.components.nest as nest
 
 from homeassistant.helpers.entity import Entity
 from homeassistant.const import TEMP_CELCIUS
-from homeassistant.helpers.temperature import convert
 
 DEPENDENCIES = ['nest']
 SENSOR_TYPES = ['humidity',
@@ -29,6 +28,7 @@ SENSOR_TEMP_TYPES = ['temperature',
                      'away_temperature[0]',
                      'away_temperature[1]']
 
+
 def setup_platform(hass, config, add_devices, discovery_info=None):
     "Setup Nest Sensor from config file"
 
@@ -75,6 +75,7 @@ class NestSensor(Entity):
                 return "{}({}){}".format(location.capitalize(),
                                          name,
                                          self.variable)
+
     @property
     def state(self):
         """ Returns the state of the sensor. """
@@ -85,12 +86,13 @@ class NestSensor(Entity):
     def unit_of_measurement(self):
         return SENSOR_UNITS.get(self.variable, None)
 
+
 class NestTempSensor(NestSensor):
     """ Represents a Nest Temperature sensor. """
 
     @property
     def unit_of_measurement(self):
-        return self.hass.config.temperature_unit
+        return TEMP_CELCIUS
 
     @property
     def state(self):
@@ -98,7 +100,4 @@ class NestTempSensor(NestSensor):
         if temp is None:
             return None
 
-        value = convert(temp, TEMP_CELCIUS,
-                        self.hass.config.temperature_unit)
-
-        return round(value, 1)
+        return round(temp, 1)
diff --git a/homeassistant/components/thermostat/nest.py b/homeassistant/components/thermostat/nest.py
index 24f9153c50e..423a3195976 100644
--- a/homeassistant/components/thermostat/nest.py
+++ b/homeassistant/components/thermostat/nest.py
@@ -16,8 +16,10 @@ import homeassistant.components.nest as nest
 
 DEPENDENCIES = ['nest']
 
+
 def setup_platform(hass, config, add_devices, discovery_info=None):
     "Setup nest thermostat"
+
     logger = logging.getLogger(__name__)
 
     try:
@@ -31,6 +33,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
             "Connection error logging into the nest web service."
         )
 
+
 class NestThermostat(ThermostatDevice):
     """ Represents a Nest thermostat. """