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Roost Smart Battery – transform your old smoke detector with Wi-Fi and smartphone tech


Back when I lived in an apartment, I was once awoken at 4 AM by the smell of smoke. Two minutes later, the source of the smell was pouring through my vents and filling the room. I packed up two kids and two cats in record time while calling the fire department. You know how many of my smoke detectors went off? Zero. The batteries were all dead. The Roost Smart Battery is a device that aims to stop this happening to anyone else.

Luckily for me, the “fire” was just my downstairs neighbor burning pasta at 4 AM but this could easily have been something more serious. The Roost looks and works just like a normal 9v battery for the most part. All you need to do is slide it into the battery slot in your smoke detector and that’s it, installed. It has one extra feature that makes it worthwhile. The battery includes Wi-Fi connection that lets you monitor it from your smartphone.


Not only will it alert you to the battery running low (which it shouldn’t do often, the battery has a life of 5 years) but also to the smoke detector sounding no matter where you are. In the office when you get the notification? Dispatch the fire department to your home to save your dog. The Roost is $35 and ships in June.

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