diff --git a/homeassistant/components/sensor/onewire.py b/homeassistant/components/sensor/onewire.py
index 8a07d3484d5..43105d54e38 100644
--- a/homeassistant/components/sensor/onewire.py
+++ b/homeassistant/components/sensor/onewire.py
@@ -28,7 +28,8 @@ DEVICE_SENSORS = {'10': {'temperature': 'temperature'},
                   '22': {'temperature': 'temperature'},
                   '26': {'temperature': 'temperature',
                          'humidity': 'humidity',
-                         'pressure': 'B1-R1-A/pressure'},
+                         'pressure': 'B1-R1-A/pressure',
+                         'illuminance': 'S3-R1-A/illuminance'},
                   '28': {'temperature': 'temperature'},
                   '3B': {'temperature': 'temperature'},
                   '42': {'temperature': 'temperature'}}
@@ -37,6 +38,7 @@ SENSOR_TYPES = {
     'temperature': ['temperature', TEMP_CELSIUS],
     'humidity': ['humidity', '%'],
     'pressure': ['pressure', 'mb'],
+    'illuminance': ['illuminance', 'lux'],
 }
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({