Dimensions & weight
Dimensions
Length: 13.5 cm (5.3 in)
Width: 3.85 cm (1.5 in)
Height: 13.5 cm (5.3 in)
Weight
Nest Protect Battery: 379.0 g (13.9 oz)
Nest Protect Wired: 375.0 g (13.2 oz)
Colour
White
Sensors
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
Microphone
Battery
Battery model: Six long-life AA batteries (Energizer® Ultimate Lithium “L91”)
Wired model: Three long-life backup AA batteries (Energizer® Ultimate Lithium “L91”)
Wireless
802.11b/g/n (2.4GHz) Wi-Fi
802.15.4 (2.4 GHz)
Bluetooth low energy
Operating temperature
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).
Audio
80 dB @ 3 ft (1 m) @ 1kHz
Horn
85 dB SPL @ 3 m (10 ft)
Warranty
Two-year limited warranty
Certification
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).
External Buttons
RGB colour ring with 6 LEDs
