Nest Protect 2nd Generation

Features

The smoke alarm that others look up to.

Nest Protect is a smoke and carbon monoxide alarm with a split-spectrum smoke sensor to detect both fast- and slow-burning fires.
It can send an alert to your phone, speak to you and even light the way in the dark.

Nest Protect

It tells you what the danger is and where it is.

The Split-Spectrum Sensor looks for both fast- and slow-burning fires. It also has a 10-year CO sensor so that it can tell you where poisonous, invisible CO is hiding. And all your Nest Protects speak up at the same time to tell you what's wrong and where the problem is.

Thoughtful, not annoying.

Nest Protect checks itself over 400 times a day and lets you know if something is wrong. It also has Steam Check, so a nice, relaxing shower shouldn’t cause your alarm to shout at you. And Pathlight, so it can light your way at night.

You’ll know, from anywhere.

Nest Protect can alert your phone when something is wrong at home. You’ll receive a message if the alarm goes off, if the batteries start to run low or if a sensor isn’t working. And you can silence your Nest Protect using the Nest app.

Easy to install.

Nest Protect only takes minutes to set up with your iOS or Android device. Once you’ve added each of your Nest Protects to your Nest account, they will automatically connect to each other. Nest Protect is also simple to attach to the ceiling, thanks to a neatly designed back plate.

Technical specifications

Power

Battery
Six long-life AA
Energizer^® Ultimate
Lithium batteries

Colour

White

Features

Nest app – Mobile alerts include:
- Low battery
- Smoke & carbon monoxide
- Sensor failure
Split-spectrum smoke sensor
Voice alarms with custom location
Silence the alarm from the app
Carbon monoxide sensor
Has a product lifetime of up to 10 years
Heads-Up and Emergency Alerts

Languages

Pre-installed languages, by country
Italy, Spain: Italian, Spanish
Germany, Austria: German, French
United States: English, Spanish
Canada: English, French (Québécois)
United Kingdom: English (UK)
France, Belgium and the Netherlands: French, Dutch
Sweden, Finland: Swedish, Finnish
Norway, Denmark: Norwegian, Danish

After setup, you can change the language that
Nest Protect speaks to any of the languages above.

Sensors

10-year electrochemical carbon monoxide sensor
Heat sensor, ± 1 ºC (1.8 ºF)
Humidity sensor, ± 3% RH
Occupancy sensor, 120º field of view to 6 m
Ambient light sensor, 1–100,000 lux dynamic range
Omnidirectional microphone, 70 dBA SNR (for Sound Check only)

Speaker, siren and light ring

Speaker: 80 dB at 1 metre
Siren: 85 dB SPL at 3 metres
RGB colour ring with 6 LEDs

Size and weight

Height: 13.4 cm
Width: 13.4 cm
Depth: 3.9 cm
Mass: 379 g

Connectivity requirements

Wi-Fi connection
Requires a web browser, or a compatible phone or tablet with the free Nest app and Bluetooth 4.0.

Wireless

Wi-Fi connection: 802.11b/g/n @ 2.4 GHz
Wireless Interconnect: 802.15.4 @ 2.4 GHz
Bluetooth low energy (BLE)

Certification

The 2nd-generation Nest Protect has been tested by UL to comply with European, US and Canadian safety standards. Nest Protect complies with all of the following smoke and carbon monoxide alarm standards:
EN-14604 – Smoke alarm devices.
EN-50291 – Electrical apparatus for the detection of carbon monoxide in domestic premises.
EN-50271:2010 – Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen.
EN-50292 – Electrical apparatus for the detection of carbon monoxide in domestic premises.

Operating temperature and humidity

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

What’s in the box

Nest Protect (Battery)
Six long-life batteries
Back plate
Four screws
User’s Guide and Welcome Guide