![]() ![]() If it’s yellow, that means something requires your attention, such as a low battery or a sensor isn’t performing properly. The ring light on the device indicates its status. They also test their speakers and alarms once a month during a time period you can set. The hardwired option runs off your home’s electricity, comes with a backup of three AA batteries and offers extra occupancy sensors so it can detect if someone is home and signal your smart home to react if they are not - though this depends on the routines you set up in the Google Home app.īoth versions self-test their sensors and batteries regularly to ensure they’re working. ![]() The Nest Protect comes in both a hardwired and battery-powered version. Smart connectivity with other Nest productsĪs an additional safety feature, there’s a Pathlight feature that comes on in a dark room if it detects motion and during an emergency, it turns red to help you escape. We didn’t need to test this, thankfully, but we could easily see a situation where a remote notification would cause us to immediately call the fire department if no one was home to check on the house. These phone notifications are also handy for when you’re away from home. This is much better than the usual zero-to-panic that usually happens when smoke alarms go off. After the initial chime and a calm voice warning, the Nest app began pinging our phones with notifications until finally, the siren went off. The whole warning system was well-designed and escalated thoughtfully. We also tried it with a slow-burning paper fire and, boy, did it work. ![]() If your phone isn’t nearby, the large central button on the Nest Protect itself is easy to push to hush it before it goes off. This gave us enough time to grab our phone and silence the false alarm. In our tests, the Nest Protect did a good job of detecting cooking smoke and notifying us that the alarm was about to go off via a calm voice alert that said smoke levels were rising. The Nest Protect uses what Google calls a Split-Spectrum Sensor, which uses a traditional infrared photoelectric sensor paired with a second, blue LED, to detect slow-burning smoldering fires and fast-burning blazes more quickly.
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