alarm cable 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll)designed for intruder alarm systems ... and competitive alarm cable 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll) Cable Introduction:Burglar alarm cable ... of 0.20mm annealed tinned copper, plain bare copper, copper clad aluminum or tinned copper clad aluminum.Specification:l Conductor: ... 207.8 alarm cable 4x0.22mm ,(4 core ,7/0.20 copper, 305m/roll)