... cable 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll)designed for intruder alarm systems with good quality and competitive ... cable 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll) Cable Introduction:Burglar alarm cable is specifically designed for intruder ... and 20 cores, in white outer sheaths, with rip-cord. The cores are made from 7 strands of 0.20mm annealed ... 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll)