Sensors & Safety

SimpliSafe and Ring Alarm are two of the best-known DIY alarm systems. Both install in an afternoon with peel-and-stick sensors, neither needs a contract, and an 8-piece starter kit from either costs around $225 to $250. So the SimpliSafe vs Ring decision comes down to three things: what each system does if you never pay … Read more

The best DIY home security system is one you can set up yourself in an afternoon: a base station with a siren, a keypad, and sensors that stick to your doors and windows, with professional monitoring as an option rather than a requirement. Every system here installs without tools or a technician, and none of … Read more

The best water leak detector is the one whose alarm actually reaches you when a supply line lets go at 2 a.m. or while you are away for the weekend. That sounds obvious, but it is easy to get wrong. A sensor can detect water perfectly and still fail you if its alert only goes … Read more

Are smart smoke detectors worth it? For most people who own a smartphone and live in a larger or multi-floor home, yes. For a small apartment where you are always within earshot of the alarm, probably not. The important thing to understand up front is that the core fire-detection job is identical whether an alarm … Read more

A smoke alarm that only screams at the ceiling is doing half the job. The best smart smoke detector also sends the alert to your phone, tells you whether the danger is smoke or carbon monoxide, and can wake up the rest of the house when one unit trips. That last part matters most when … Read more

Last updated: October 2026 Finding the best presence sensors for renters comes down to one rule: nothing that puts a hole in the wall or a wire behind it. You want a device you can set up in an afternoon, take with you when the lease ends, and never explain to a landlord. The good … Read more

Last updated: September 2026 A door sensor is the smallest, cheapest smart home upgrade that actually changes how your home behaves. Stick one on a door or window, and it can turn on lights when you come home, warn you if a door is left open, or arm a security system automatically. The catch is … Read more

Last updated: October 2026 Renting does not mean giving up a smart home. The best motion sensors for renters are battery-powered, stick on with adhesive or a magnet, and pull off cleanly when your lease ends, so you get automatic lights and movement alerts without a single hole in the wall or a call to … Read more

Last updated: October 2026 If your reading lamp keeps shutting off while you are sitting perfectly still at your desk, a desk lamp presence sensor is the fix. The problem is not your lamp or your smart plug. It is the kind of sensor doing the switching. Most cheap “motion switches” use a passive infrared … Read more

Last updated: September 2026 A HomeKit temperature sensor sounds like the simplest gadget in your smart home, until you buy one that never shows up in the Home app. The truth is that most temperature and humidity monitors on Amazon do not work with Apple Home at all, and the ones that do split into … Read more