I installed these alarms on my back door and basement windows, and wow—they’re LOUD. The 130dB siren isn’t kidding around. When my cat nudged the door open, the blast made us both jump (sorry, Whiskers). Perfect for deterring intruders or alerting me if my toddler tries a jailbreak.

The remote is a game-changer. I keep one on my keychain and another by the bed. Arming/disarming takes seconds, though it occasionally needs a few button mashes (annoying during midnight snack runs). Pro tip: Label remotes if you have multiple sensors—the identical beeps get confusing.

Installation was stupid easy—peel-and-stick adhesive—but the included tape failed after two weeks on my textured door frame. Heavy-duty outdoor tape solved it. Just mind the 0.6-inch magnet gap; my first attempt had the alarm screaming nonstop because I eyeballed it wrong.

Battery life impresses me. Six months in, no low-power warnings yet. Love that the panic button triggers all sensors at once—tested it during a power outage, and my neighbor texted asking if I needed help (awkward but reassuring).

Downsides? No volume control (RIP eardrums) and flimsy plastic housing. Mine survived a slam, but reviews mention breakage. For $20 though? Worth it for peace of mind until I splurge on a fancy system.