Wireless Detector Needed Maybe?

[HoofHearted]

I have a Bosch Abacus Evolution alarm system. I'm really pleased with it (apart from the documentation).

I have a detached stone outhouse at the rear of my property. There is mains electricity in there, but it would be very hard work to run an alarm cable out there. I was wondering if I have any options for doing this wirelessly or down the mains cable. There are 2 doors on this outhouse that I would like to protect. Is there some sorty of base station I can install in there that will transmit up to a base station that connects to my panel?

Ian