Nest Protect 2nd Generation Smoke + Carbon Monoxide Alarm

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The all-new Nest Protect speaks up if there’s smoke or carbon monoxide (CO) and tells you where it is, so you know what to do. It also alerts your phone and tells you where the danger is. You can silence a false alarm with your phone.

The wireless alarm comes with an impressive 10-year product lifetime.


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The Nest Protect detects both smoke and carbon monoxide (CO). The system simply links to an app on your smart phone or tablet and alerts you if it detects smoke or CO. The Nest Protect gives you heads-up voice alarm with custom locations so you know exactly where the smoke has been detected.

Get alerts on your phone

The Nest app will notify you if the battery is low or if there is a sensor failure; you can also do the recommended alarm tests one a week.

Every second counts

The Split­-Spectrum Sensor looks for both fast and slow-­burning fires.

Silence from the Nest app

Just burnt the toast? Silence the false alarm with your mobile, not your tea towel.

Tells you what, and where

Nest Protect speaks up if there’s smoke or CO and tells you where it is, so you know what to do. The Nest Protect is compactable with the Nest Learning Thermostat providing an Emergency Shut-Off is CO if detected.

Eco Installer, Cambridgeshire’s Nest approved Installer

The Smart Homes Installer team are on hand to answer any questions you may have on smart heating and installations. To find out more or to book an appointment, please give the team a call on 01353 440404 or e-mail Our smart control services and installation covers Cambridgeshire, Ely, Saffron Walden, Newmarket, Bury St Edmunds, Kings Lynn, Huntingdon, Cambridge and Royston and adjoining counties.

Additional information


Mains, Battery