Screened Alarm Cables are typically used for interconnecting wiring in intruder alarm systems in buildings, where RF interface or spurious signals may lead to false alarms or erosion of data. An earth drain wire is present along the entire length of the cable providing shield continuity and a convenient point at the control panel for earthing. Flexible tinned copper wire with PVC insulation, aluminium polyester tape with tinned copper drain wire and PVC sheath. LSF (Low Smoke & Fume) and LSNH (Low Smoke No Halogen) options also available