alarm cable 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll)designed for intruder alarm systems with good quality and competitive alarm cable 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll) Cable Introduction:Burglar alarm cable is specifically designed for intruder alarm systems but finds use in other low voltage applications, and is normal available in 4, 6, 8 ,12 and 20 cores, in white outer sheaths, ...