It may also annoy the neighbours if it triggers when cats or dogs go by, so that is always worthwhile bearing in mind. The alarm comes with a loud siren of around 100 db so that when an unnecessary motion is detected, the user is alerted even if he is a little far from the shed. And besides, (as we'll see) they're so easy to set up and some of them are so cheap these days, that there's no reason not to give them a go. The shed alarm runs on 4 AA batteries, and the shed alarm displays a red indicator if the battery is running low and needs a replacement.

Attach the main unit to the door and the sensor to the frame, and the alarm triggers as soon as they’re separated. They are also good if the thief manages to quickly disable the siren, as you will already have the phone message and will be able to take action! The power cable on the power adapter for the siren speaker is on the short side too, so you’ll either have to get an extension lead, or set it up near a wall socket. And if your living area is a little further away, you can add second siren in your home, as long as it's within wireless distance.The kit includes a horn and two door/window sensors, two remote controls, and a PIR motion detector. So if you leave the alarm off, you'll be notified of the break in but the thief won't know you know! Being wireless ensures you can place your alarm anywhere you need, and it will need 4x AA batteries to operate (not included).

Some users have suggested that this delay is a little long, as it might give intruders time to locate the alarm. Along with the alarm come two identical remote controls, and this can come in very handy if you’ve got more than one person who wants to access the shed, or older children sharing the house who come home after you’ve gone to bed. This motion sensor alarm launches into a loud 130 dB siren without any heads up, increasing the element of surprise. In addition to the easy setup, this type of alarm is less likely to give you problems with false alarms, as it does not get triggered by motion, sound, or vibration, in the same way as other shed security products. and then have you running downstairs in your Y-fronts armed with your garden spade ready to take on the burglars, all for nothing.Overall, it’s one of the best shed alarms if you want something discreet, because it’s a small unit that can be placed out of the way and armed/disarmed by remote control. So, if you have the alarm in your pocket and sit down or bump into something, you might suddenly set off the SOS siren by accident.