Decided to try this alarm after reading many mixed reviews as the specifications are so outstanding, the first one I fitted was to a friends bike and at first was false alarming if so much as a leaf fell on it, this was easily sorted through the correct programming of the alarm using the installers guide, it turns out they are factory set to 'extreme sensitivity' when brand new, this bike no longer false alarms even when left outside overnight in strong winds yet still functions correctly when you try to move the bike, I was so impressed that I bought the same alarm for my own bike, I have fitted both alarms myself and as always find that if time is taken on planning and installation then future faults should not occur, all wires in my case were soldered and waterproofed using self amalgamating rubber tape (cheap from screwfix). Colin