A shed alarm is very important if you keep anything valuable in your garden shed such as gardening equipment like lawn mowers or strimmers, or expensive bikes and other semi expensive items. They are especially important if it is relatively easy access into your garden, like having a low fence or even an alley way running behind your plot.
Shed doors can often be locked but are relatively easy to break into due to their weak structure. Some garden sheds even have doors that can be lifted easily off their hinges. It is important to alarm your garden shed if you feel like it could be a target to burglars. Sometimes shed burglars are not breaking in to steal the contents of the shed but to use the tools that are stored in the shed to help them to break into the house where richer pickings can be found. This is a doubly important reason to keep your shed more secure with a garden shed alarm.
Shed alarms can come either hardwired into your main electric supply or they can be run off a battery. The method you choose will depend on cost and whether or not you already have mains power running to your shed structure.
Hardwired shed alarms will often need you to have a good knowledge of electricity or you will have to hire a professional electrician to help you out with the job. Hardwired systems can be set up to only come on after dark, at all times or just at certain times of the day. As they need to be powered constantly there are higher maintenance and running costs then battery powered units but they are usually more reliable and in the long run they could save you a lot of money, especially if they deter a shed or even a home break in.
Battery powered garden shed alarms can be just as effective as their hardwired cousins but have the additional ability to be placed anywhere, regardless of whether there is a power source nearby. Battery powered shed alarms are usually much cheaper than hardwired main electrical models but you must remember to regularly change the batter y otherwise they are useless to stop thieves.