My question is around shed alarms. You can get the PIR ones with remote control keb fobs for less than a fiver on Ebay.. Are they any good, eg loud enough? I’m also assuming that you would have to tuck them away in the shed to avoid a swift swing of a crowbar taking it out.
I had a cheap Halfords bike nicked from my shed a year or so back (police thought it was probably an opportunist theft to get something to ride home on). Since then I’ve got a shed alarm like this that has a PIR unit in the shed, and an alarm in the house. Even set just to doorbell chime, it is jolly darned loud, and try as I might, I couldn’t work out any way to get in the shed without setting it off, even knowing it is there. Sensor battery lasts about a year, then the sensor light just goes solid red (rather than flashing on movement), and you see it next time you’re in the shed, meaning you’re unprotected for a very short while each year, but other than that it works great.
I could stick an alarm in the shed, but all that would do is make a noise, wouldn’t stop anyone nicking stuff, whereas I reckon an actual person coming out and saying ‘oi, scumbag’, is a lot more likely to stop them.
My bikes aren’t fancy ones that someone would target to nick though (and it wouldn’t be much money to replace if they did get nicked), so I feel I don’t need the fort-knox style security that some people obviously have, but knowing that I’ll at least hear if anyone goes in the shed is reassuring.