Mengshen Wireless Motorcycle Bicycle Alarm, Security Anti-Theft Alarm with Remote Control, IP55 Waterproof, 113 dB Super Loud (Black)

My grandson said it was his best birthday present.

For a basic bike alarm it woks well, easy to install and loud alarm

Very sensitive once armed, be careful once batteries are ready. Can go off easily while storing prior to fitting.

This little beast is a must have for motorcycles or bicycle owners. It works very well.

I used the tie wraps to fit it as it will need to removed to change the battery and the speaker is on the front and the battery compartment is on the back.I fitted it to the tailgate of a truck rear canopy. The tie wraps were long enough to fasten the top one round a tailgate piston case and through a cable above to stop it sliding down. The second tie wrap was fasten just round the piston case.Impressive as it gives an audible bleep as soon as the key is put in the tailgate lock and the alarm fob will deactivate it through the glass. Banging on the tailgate will activate it, so any interferance with the back will activate it which is what I wanted. Only took a few minutes to fit and the controls are easy to use.

Very loud but 1. Put your palm on it and it gets muffled. 2. The arm and disarm beep is weak and cannot be heard from more than a short distance.I used to have a different bike alarm. Whenever I wanted to check on it's security I could hear the beep at the press of a button from over 150 feet away in heavy traffic and indoors.This has to be hidden otherwise it can be silenced. The problem is that hiding it inside a bike reduces it's volume and nobody takes any notice of alarms especially if they are not very loud.It may be best attached semi- externally but in a place a hand cannot reach so it sounds at full volume and cannot be easily removed.

I have 3 of these one one each of my van doors all synced to one remote. Anyone tries the door handles the alarm sends a warning sound if tried again alarm goes off.And it's worked

Very neat and easy to use. Great loud sound. Useful to keep my bicycle from being taken.