Tech specs
Dimensions
Length: 5.3 in (13.4 cm)
Width: 1.6 in (3.95 cm)
Height: 5.3 in (13.4 cm)
Weight
Nest Protect Battery: 13.9 oz (379.0 g)
Nest Protect Wired: 13.2 oz (375.0 g)
Color
White
Sensors
Split‑Spectrum smoke sensor
Electrochemical carbon monoxide sensor (Nest Protect's sensor lasts up to 10 years from the date of manufacture.)
Temperature
Humidity
Occupancy (120° field of view up to 20 feet)
Ambient light
Accelerometer
Battery
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”)
Wireless
802.11b/g/n (2.4GHz) Wi-Fi
802.15.4 (2.4GHz)
Bluetooth Low Energy
Operating Temperature
40ºF (4 ºC) to 100ºF (38 ºC)
The alarm should not be installed in locations where the normal ambient temperature is below 40ºF (4 ºC) or exceeds 100ºF (38 ºC). Humidity range: 20%RH to 80%RH (non condensing).
Audio
80 dB @ 3 ft (1 m) @ 1kHz
Speaker loudness: 80 dB @ 3 ft (1 m) @ 1kHz
Horn
85 dB SPL @ 10 ft (3 m)
Warranty
Two-year limited warranty
Two-year limited warranty. For help, visit nest.com/support.
Certification
Complies with safety standards set out by UL
Nest Protect has been tested to comply with safety standards UL 2034, UL 217, and NFPA-72 set out by UL and California State Fire Marshal.
External Buttons
RGB color ring with 6 LEDs
What's in the box
Nest Protect: 2nd Gen Smoke + CO Alarm
Backplate
Four screws
User’s guide
Welcome guide
Six long-life AA batteries (Battery model)
Three long-life backup AA batteries (Wired model)
120V AC connector (Wired model)
Three wire nuts (Wired model)
Requirements
Wi-Fi connection.
Phone or tablet with iOS 8 or later, or Android 4 or later
Free Nest account.