CATSONIC Premium Window Alarm Device Set - Extra Loud 130dB Alarm & Vibration Sensors - Universal Compatibility & Easy Installation - Great for Home, Office & RV Security (6 Set Black)

Very good alarm system!!!!😊

I added them to all my windows. I went outside and tapped on the windows and they sounded off really loud. It's a great little battery alarm and saves you money compared to paying an alarm company to install and pay a monthly fee.

Glad to have these. One arrived broken, but I had two extras so it wasn’t a big deal. There are two on adjacent windows in my living room, though, and one of them seems to go off far too often. (In fact, of the 10 I installed, it is the only one that has gone off at all.) If my dog barks, it will go off, but the one on the adjacent window doesn’t - and none of the others go off when he barks. It also does not stop. I’ll get a “sound detection” notification from my security cameras and 20-30 minutes later when I’m able to get home, that same one is still going off. I assume it’s broken as it’s the only one that does this and seemingly for no reason. Other than that, I’m happy to have purchased these. They’re also fairly loud, and the one that goes off every day can be heard from outside lol.

Slim, sensitive

These work great. Only takes a knock on the window to set alarms off and very loud. We're satisfied so far.

As far as functionality goes, these alarms most definitely work. Even the slightest vibration will set these things off and they are super loud so they are sure to scare anyone away who might be attempting to break in.The problem is that they are overly sensitive and go off for the slightest reason. Even the slight vibrations that occur on my windows when my dog barks sets them off and it is a real pain.The installation is a breeze and pretty self explanatory. The adhesion on the back of the alarms are durable and I've had no trouble with any of them falling off so thats a good point.Unfortunately we are looking to go ahead in just replace these because they are not very convenient. We have to turn them off during the day because any noise sets them off and most of the time we forget to turn them back on.Another thing that bothers me is that when the alarms go off the siren goes on and on and does not turn off, draining the battery.

They are great. Work

I have a dozen or so of these Catsonics and also have a dozen of the Doberman alarms that appear almost identical. After about 4 weeks - the Catsonic alarms become almost impossible to reset - using the little button. No amount of taping, pressing or rubbing them will reset them.The Dobermans are far more sensitive and are set off by sun hitting the window, thunder and any sharp noises in the house - even dropping a fork. Meaning lots of false alarms. The batteries lasted about a year. Additionally, neither alarms are loud enough to heard outside above ambient street noises. Don't depend on you neighbor hearing them. I would say save your money for a decent security system, but I have yet to find one that is cost effective, reliable and durable.

works great, price is right. added security to home