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Google Nest Protect 2nd Gen. (battery powered, wireless)


List Price $119.00

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$119.00 Including VAT
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Expert Reviews
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The Google Nest Protect is one of the few smoke and carbon monoxide detectors that can be operated using an app. This lets you hush the home alarm using your smartphone, with the app giving you alerts even when you’re not at home so you can react during an emergency. Up to 20 users can operate a single Nest Protect, so your whole family stays in the know. Every family member can also create their own account for the device, so you won’t have to share a password.

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Product Information

  • Automatic Testing: The Nest Protect checks it batteries and sensors over 400 times a day, lighting up green at night to let you known when its tests were successful.
  • Nightlight: In the mood for a midnight snack? Nest Protect detects movement, while also knowing if it's dark. The LED Ring then lights up when the detector senses you walking underneath it.
  • Carbon Monoxide SensorCarbon Monoxide is a silent killer. The Nest Protect can detect the deadly gas and alerts you via its alarm of its presence as well sending you a notification in the app.
  • Dynamic: The smoke alarm uses algorithms to determine whether steam or smoke is present, drastically reducing incidences of false alarms.
  • Long lifespan: The carbon monoxide detectors of the Nest Protect last for up to ten years meaning you can breathe easy for the foreseeable future.
  • Detects in real time: The Nest Protect alerts you immediately should anything go wrong, not only for fires, but also when the batteries are low or a sensor is broken.
  • Connect your home: Using more than one Nest device unlocks an additional feature. If the smoke detector in the kitchen starts to beep, the early warning system and sirens in your other Nest Protects will be activated.
  • Cross compatible: The smoke alarm is also compatible with third party devices, for example the Nest Cam, Phillips Hue and IFTTT App.

The Google Nest Protect Smoke and Carbon Monoxide Detector in action

The second generation of the Nest Protects brings new ideas to the table as well delivering improvements in performance. For starters the device has been made much more compact. It has a much rounder shape, giving it a much more futuristic and unique look. When you break open its case, you’ll find six sensors, each one designed for a particular purpose. Of course, the focus is on fire protection, whereby the Nest Protect can monitor both light and heavy fires. Temperature, smoke, and a carbon monoxide detectors make sure your home is safe while the ten-year long battery life guarantees long-lasting protection. 

This device tests itself more than 400 times a day and sends you a silent notification if something goes wrong. Particularly useful is the early warning system which means that if you just happen to overcook your dinner, it will give you a vocal warning informing you that there's smoke in the kitchen without activating the full alarm system. Should you have more than one system in your home, the system also informs you where the smoke is coming from. As a complete package, the Nest Protect impresses as a comprehensive fire protection system. It brings with it all the expected abilities of a smoke and carbon monoxide detector while also packing in groundbreaking features like the early warning system and the ability to distinguish between steam and smoke. For added security in your home, you can connect the Nest Protect with products such as the Nest Cam Indoor or the Nest Cam IQ.

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Expert Reviews
Tested by tink expert
Installation 8

Google Nest Protect is setup using the app before it's attached to any surface, with the setup process only lasting a few minutes. Afterwards, you can screw the device to the ceiling.

Product Quality 10

Fire intensity sensor, electrochemical carbon monoxide sensor, heat sensor, humidity sensor, motion sensor, light sensor, siren (85 dB at a range of 9.8 feet)

App/Software 9

With a simple and intuitive user-interface, the Google Home app allows you to manage and control all of your connected devices, as well as providing access to useful features and functionalities.

Functionality 9

Raises alarm in case of fire or carbon monoxide, cross alarm early warning system, night watch mode, can differentiate between smoke and steam, sends notification to your phone in emergencies, gives you an overview of all incidents that have happened.<

Reliability 9

Reliable, with the early warning system proving itself to be particularly trustworthy. Continually tests itself to assure that its working normally.

Design 9

A smoke alarm that isn’t afraid to think outside of the box. The second generation Nest Protect has a futuristic feel and has a clean look thanks to its LED lights and rounded shape.

Data Protection 9

Google Nest devices are equipped with a firewall that is always automatically updated. Data is encrypted in accordance with modern, standard regulations.

Value for Money 9

The price is justified merely on the basis of it long life span, with the groundbreaking features making this price point an absolute bargain.

Google Nest Protect is setup using the app before it's attached to any surface, with the setup process only lasting a few minutes. Afterwards, you can screw the device to the ceiling.

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Technical details

Technical details

Product dimension5.3 x 5.3 x 1.5 inches
Article weight0.8 lb
Speaker: 2 Watt
Siren: 85 dB at 9.8 ft. distance
Light ring with RGB colors and 6 LEDs
SensorsFire Spectrum Sensor, 450 nm and 880 nm Wavelength
Electrochemical carbon monoxide sensor with 10 years product lifetime
Heat sensor: ± 33,8 ºF
Humidity sensor: ± 3 % RH
Presence sensor: 120° detection angle at 19.6 ft.
Ambient light sensor: 1-100,000 lux
Dynamic range
ConnectivityWifi, Bluetooth Low Energy
Power supply6 AA batteries
Included in deliveryNest Protect, 6 x long time batteries, suspension, 4 screws, user manual and introduction
How do I change the batteries?

Simply remove the Nest Protect from the ceiling and open the hatch on rear side of the device.

What exactly is the night watch feature?

Nest Protect knows when you’ve turned the light off at night, going automatically into Night-watch mode. A green light now shows you that all tests ran successfully during the day. The device will also light up more brightly should it detect that you’re moving around the home at night.

How long can I use the device for?

The Google Nest Protects monitors your home for up to ten years. After this time span, the carbon monoxide detectors have expired and must be exchanged.

What certifications does the Nest Protect have?

The Nest Protect has been tested by Underwriters Laboratories for compliance with U.S, European and Canadian safety standards. It conforms with the following standard for Smoke and Carbon Monoxide alarms: EN-14604, EN-50291, EN-50271:2010, EN-50292.

Is the device weather resistant?

The device has only been designed for interior use. It should therefore not be attached to surfaces where the temperature may fall below 39.2 Degrees Fahrenheit or may exceed 100 Fahrenheit. The Nest Protect has been designed for relative humidity conditions of between 20 and 80% (non-condensing).

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