Shed/Garage Alarms

Hi guys/gals

Been beefing up the shed for the bike as the current storage is costing too much and low security for my baby, so my Question to you all is does anyone have there garage or shed alarmed and what should i look for? As everything i have been seeing online is battery operated.

how about one of these Tony,


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Just dont feed it for a few days haha

Try this Tony, you'll hear the skumbags.

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No one pays attention to alarms other than the owner,security lights,locks n chains,anything that's gonna slow them down n make it harder for them.