• Manufacturer: Nest
  
  

Includes smoke alarm, split spectrum sensor, 10 year electrochemical carbon monoxide sensor, heat sensor, humidity sensor, occupancy sensor, ambient sensor, light ring with 6 RGB LEDs, phone alerts for low battery, smoke and carbon monoxide and sensor failure, voice alarms with custom location, Nest app, app silence, safety check up, heads up alerts, path light, steam check, Nest Thermostat turns off gas furnace, Wi-Fi (802.11 b/g/n), connects with other Nest Protects, uses 6 AA L91 Lithium batteries, 5.3"W x 5.3"H x 1.5" D, white.