Fire Alarm Cable, Unshielded Armored, Series 39, 300 V, 5 -Conductor, Solid Conductor, 18 AWG Conductor, 0.437 in Outside Diameter, 300 m Length, PVC Insulation, 0.015 in Thickness Insulation, PVC Jacket, Red Jacket, -30 to 105 deg C, Brown, Standards/Approvals: CSA C22.2 No. 208 Type FAS FT4 Certified, Applications: For use in the interconnection of security system elements, protective signaling devices such as smoke detectors, fire alarms and two way emergency communication systems