Goerpn 2 Pack Ultra Slim Vibration Alarm 130dB Window Alarm for Security, Shed, Door, Glass Break Alert, Home, Office, Dorm Room, RV

Excellent small alarm system which shoulld act as a good deterrent as a first alarm if window broken. Loud decibel siren Red light lets you know its switched on (would be better with two ie. on the glass side to let a perpetrator know the window is alarmed. Overall great price and good quality. Now fitted to all my windows

They are pretty good quality considering the price. They are very slimline and smart. They are very easy to set up and use and also loud.

It didn't work on my door. It might work on yours.. who know? Try and return if it doesn't work. I returned mine

We got them to put on our street-facing windows after an attempted break in. They're not too sensitive, i.e. slamming the front door doesn't trigger them. They're very loud when they go off, so will definitely scare off anyone not expecting them. They've gone off a couple of times when things have knocked against the windows, so that's a good sign. Hopefully i'll never need to find out whether they're triggered by someone trying to smash a window again.

A very good product, fast delivery, I would buy again.

Designed to stick on a door or window and fine for that purpose but they are small enough to fit in most key safes which can be vulnerable to brute force attacks . Suggest this together with putting the key safe in an obscure place for extra security slightly higher than eye level .

I wasnt to sure if these would be any good but their excellent and I would recommend. There nice and loud.

Cheap plasticy nonsense — works fine but unimpressive on alkaline batteries

This is one of the cheapest and simplest window alarms, but it is one of the best, doing its job with distinction.

Fantastic price and work well

It’s loud enough once it goes off, but the sensor isn’t very sensitive. You need to shake or hit the window quite hard before it activates. Okay for basic use, but not ideal if you want something that reacts easily.

Ordered 4. 2 were faulty and 1 too sensitive so $45 for one working alarm. No point returning as it would cost more in postage from Australia. Won’t buy again