High options: – Reactive monitoring helps to maintain your house secure – Smartphone alerts let you understand what is going on on – No extra annoying alarms Reactive monitoringYour security issues. That is why the Nest Defend Second Technology Wi-fi Smoke & Carbon Monoxide Alarm is the primary smoke alarm that may detect any sort of fireside.The Break up-Spectrum Sensor contained in the alarm analyses two completely different mild wavelengths to recognise each slow- and fast-burning fires.This smoke and CO2 alarm checks itself consistently, so you will not want to fret. You possibly can see it is working at a look – it gives a inexperienced glow when your whole Nest Defend alarms have examined themselves.Smartphone alertsYou ought to all the time be within the know, so the Nest Defend has a Heads-Up early warning operate. It sends you a message within the app if it detects smoke, or if carbon monoxide ranges are rising, so you’ll be able to take motion.The alarm has yellow lighting when it detects hazard, and speaks with a human voice to let you understand what is going on on. In case you have a couple of Nest Defend, they’ll all converse directly.No extra annoying alarmsFed up with steam within the kitchen setting off your smoke detector? The Nest Defend Alarm is aware of the distinction between steam and an emergency scenario, so you’ll be able to count on fewer false alarms.When you’ve burnt the toast and set off the alarm, you need to use the app to silence the alarm – there will be no extra wafting a tea towel at your smoke detector.