Ultra-Slim Window Alarm Premium 6 Pcs Device Set - Loud 100dB Home Security Alarm and Vibration Sensors - Universal Compatibility & Easy Installation - Great for Home, Office & RV Security

I also have the Doberman alarm which is about the same in noise volume. However placement of the off and on switch is different. This brand has it on the side and the Doberman is on the face (nonsticky side) and easier to use. These were less expensive so a good deal and works equally as well as the other brand. I gave it one less star because of my personal preference of switch location.

They stick very well...just need to be louder. I can barely hear it through the house. I have other alarms that are 110db and they are probably as quiet as I'd go.

They seem to work ok but cold weather causes them to false alarm often , too sensitive. Update :, have changed batteries in one of them 2 times in first month

I purchased 6 of these and I've had multiple instances of different alarms on windows and glass doors going off when there was nobody around to set them off. It's terrifying to wake up to one of these alarms thinking there may be an intruder when there was nothing but faulty hardware. Pass on this item.

cheap and not water resistance use on doors didnt last long

These are not so great. The alarm goes off randomly. If you are talking loud or the air conditioner kicks on it goes off. Then some of them you can shake the window and they do nothing. I would have returned them but cant get them off my window.

A sneeze will set these off. Other than that theyre fine. Maybe I'll use them to prank my wife. then put them in the trash

not a bad product definitely does the job. Seller is worth working with. If your not happy they go over and beyond to make it right