Back in mid-2018, First Alert launched its Onelink Safe & Sound smoke and carbon dioxide detector that doubles as a Bluetooth speaker and Wi-Fi connected Alexa assistant while also including HomeKit support to integrate with the rest of your smart home products in the Apple ecosystem.
I’ve been using the Safe & Sound for a few months now, and I must say, it’s turned out to be more useful than I’d initially thought it would be.
The Onelink Safe & Sound is a hardwired smoke detector, so you’ll have to use this in a location that’s tied into your home’s electrical system rather than being able to rely on battery power. But if you’ve already got hardwired smoke detectors, swapping them out for Safe & Sound units is simple and straightforward for anyone with a modicum of do-it-yourself experience. Just make sure you turn off power to your existing detector at the breaker, unscrew the detector from the ceiling, and disconnect the wiring.