LUXY SONIC’s CO and smoke detector does what you’d expect, but it adds a few thoughtful touches that make it easier to live with. The three-level volume adjustment means you don’t have to suffer through ear-splitting alarms during false triggers from cooking. The three-level brightness control on the visual alerts also helps avoid blinding yourself during a midnight check.

The unit runs on AC power with a battery backup, so it stays operational during power outages. It detects carbon monoxide, smoke, and gas, while also displaying temperature and humidity. That’s eight functions in one device, which saves you from cluttering the ceiling with multiple units. The mute and test button is front-mounted and responsive, so you can silence nuisance alarms without fumbling for a step stool.

The audible and visual alarms trigger quickly during real events. The white casing is unobtrusive and blends into most ceilings. One honest note: the sensor array is sensitive, so you’ll want to place it away from kitchens and bathrooms to avoid unnecessary alerts. For a single-device solution that covers multiple threats, this is a solid, no-nonsense pick for home safety.