Nest Protect and CO alarm

Length: 13.4 cm (5.3 in) · Width: 1.6 in (3.95 cm) · Height: 13.4 cm (5.3 in)

Nest Protect Battery: 379.0 g (13.9 oz) · Nest Protect Wired: 375.0 g (13.2 oz)

White

Split‑spectrum smoke sensor · 10-year electrochemical carbon monoxide sensor · Temperature · Humidity · Occupancy (120° field of view up to 6 m [20 ft]) · Ambient light · Accelerometer

Six long-life AA batteries · Battery model: Six long-life AA batteries (Energizer® Ultimate Lithium “L91”) · Wired model: Three long-life backup AA batteries (Energizer® Ultimate Lithium “L91”)

802.11b/g/n (2.4GHz) Wi-Fi · 802.15.4 (2.4 GHz) · Bluetooth Low Energy

40ºF (4ºC) to 100ºF (38ºC) · The alarm should not be installed in locations where the normal ambient temperature is below 4 °C (40 °F) or exceeds 38 °C (100 °F). Humidity range: 20% RH to 80% RH (non condensing).

80 dB @ 3 ft (1 m) @ 1kHz · Speaker loudness: 80 dB @ 1 m (3 ft) @ 1kHz · Horn · 85 dB SPL @ 3 m (10 ft)

Two-year limited warranty · Two-year limited warranty. For help, visit nest.com/support.

Complies with safety standards EN 14604 and EN 50291-1 · Nest Protect has been tested to comply with safety standards EN 14604 and EN 50291-1 set out by the European Committee for Standardization (CEN) and the European Committee for Electrotechnical Standardization (CENELEC).

RGB colour ring with 6 LEDs

Legally required software and security updates will be provided. See "here" for more.

Nest Protect: 2nd Gen Smoke + CO Alarm · Backplate · Four screws · User guide · Welcome Guide · Six long-life AA batteries (Battery model) · Three long-life backup AA batteries (Wired model) · 120 V AC connector (Wired model) · Three wire nuts (Wired model)

Wi-Fi connection. · Phone or tablet with iOS 8 or later, or Android 4 or later · Free Nest account.