Let me start by saying these TECKNET Door Alarms are a game-changer! I installed them on my doors and windows, and the peace of mind they provide is incredible. The moment someone tries to open a door, the alarm blares—it’s loud enough to wake the whole house (but thankfully, you can adjust the volume to three levels).

The installation? Super easy. Just peel and stick—no tools needed. I was skeptical about the adhesive at first, but it holds strong even on textured surfaces. One thing to note: For doors with thick trim, alignment can be tricky. It works flawlessly on sliding doors but may need extra fiddling on traditional doors.

I love the dual alarm/chime mode. When my kids come home from school, I set it to chime so I know they’re back without the heart attack of a full-blown alarm. And yes, these are pool-compliant—perfect if you need safety alarms for local regulations.

The battery life has been solid so far (going strong after months), but I’ll update if that changes. For the price? Absolute steal. Whether you’re securing an Airbnb, a hotel room, or your own home, these little gadgets deliver big time.

Minor gripe: The chime melodies sound a bit cheap, but let’s be real—you’re buying this for function, not concert-quality audio. Overall? 4.5/5 stars (would be 5/5 if alignment were easier on all door types). Highly recommend!