EPOSGEAR Mini Glass Minder 100dB Door Window Vibration Shock Security Alarm with Warning Sticker - Perfect for Caravans, Sheds and Greenhouses (1, Without Batteries)

Great apart from not very loud but does the job apart from that.

Despite fixing it on a clean dry surface, it keeps falling off. Very disappoinbting.

works when your turn on but does not work when in situation of glass door, we tried banging the glass, opening the door, rattling the handle, what more should we do, if anyone has a solution please let me know, a complete waste of money.

Arrived very quickly and was just as described. Great little product!