Nest® Protect™ Battery Smoke and CO Alarm
The Nest® Protect™ Battery Smoke and CO Alarm includes sensor for smoke, split spectrum, 10-year electrochemical carbon monoxide, heat, humidity, occupancy and ambient. It features a light ring with six 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 and steam check. Wi-Fi® (802.11 b/g/n), connects with other Nest Protects (not included). Requires six AA lithium batteries (included). Dimensions: 5.3" W x 5.3" H x 1.5" D.