... Stranded CM Security Cable, Red, 1000 ft, Pullbox 8/4 (18AWG 4C) Stranded CM Security Cable, Red, 1000 ft, Pullbox1.Conductor: bare copper ... or tinned copper 2. Insulation:PVC-flame ... security system. Electrical Properties: Nom.DC Resistance per Conductor@206.43Ohms/Kft.nom.CapacitanceBetween Conductors@1KHZ 35pF/ft ...