Nest Protect 2nd Generation Smoke & Carbon Monoxide Detector 9Vdc (Battery Operated - 6 AA)

APPLICATIONS

Nest Protect is designed to detect smoke and carbon monoxide in a residential environment. It has multiple sensors to help it understand what’s happening in your home, including a Split-Spectrum Sensor to detect a wide range of slow-smoldering and fast-flaming fires.

FEATURES

App Silence
Hush Alarms with your phone, not your dish towel. If everything’s under control and there’s only a little smoke, quiet down the alarm from the Nest app.

Phone Alerts
Everyone in your family can know what’s going on, from anywhere. When something’s wrong, Nest Protect sends everyone an alert in the case no one’s home. (Mobile alerts require working internet and Wi-Fi.)

No Chirps
Tired of getting woken up at 2 a.m. by your smoke alarm? Long before it has to chirp, Nest Protect tells you its batteries are running low with a message on your phone.

Safety Checkup
Test all of your alarms with a tap. And once the test is done, you’ll get a full report.

Family Accounts
Everyone in the family can have their own Nest Account. No more sharing a password. You can all use your phone to hush and test alarms. And you’ll all get alerts on your phone if something’s wrong at home.

Sees both fast and slow burning fires.
The foam and particle board in much of today’s furniture make fires burn faster. Technology should keep up. The Split‑Spectrum Sensor uses two wavelengths of light to detect smoke from both fast-burning and smoldering fires.

10-year CO sensor
Carbon monoxide is poisonous, but you can’t see it or smell it. That’s why Nest Protect has the most accurate type of carbon monoxide sensor available. We also improved our carbon monoxide sensing algorithm. And we’ll keep working to make it better and better because people depend on it.

Tests itself
You’re supposed to test smoke alarms monthly. But 9 out of 10 people don’t. So Nest Protect checks its batteries and sensors over 400 times a day. And it’s the first alarm that uses Sound Check to quietly test its speaker and horn once a month.

Lights your way
If you need a glass of milk in the middle of the night, Nest Protect lights up as you walk underneath it. Pathlight is one of our customers’ favorite features so we made it better and brighter.

Steam is not smoke
Has your alarm ever yelled at you for taking a shower? Nest Protect is the only alarm with Steam Check. It uses custom algorithms and a humidity sensor to look for steam, so you can enjoy a nice, quiet shower.

SPECIFICATIONS

Weights & Dimensions
Length: 5.3 in (13.4 cm)
Width: 1.6 in (3.95 cm)
Height: 5.3 in (13.4 cm)
Nest Protect: 13.9 oz (379.0 g)

Color: White

Sensors
Split‑Spectrum smoke sensor
10 year electrochemical carbon monoxide sensor
Temperature
Humidity
Occupancy (120° field of view up to 20 feet)
Ambient light
Accelerometer
Microphone

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

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

Two Year Limited Warranty
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.

Includes
Nest Protect: 2nd Gen Smoke + CO Alarm
Backplate
Four screws
User’s guide
Welcome guide
Six long-life AA batteries (Energizer® Ultimate Lithium “L91”)

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