DC 48V Smoke Detector With Relay Output is a safety device to detect smoke, and prevent fire. When it detects smoke, the detector sent a relay signal to fire alarm system to remind with LED lit on. It used for Telecom or Mobile's machine room or computer room of factory or electric power. Features: * 4 wire interconnection * 48V DC powered * Frosting plastic * High sensitivity * To Set NC or NO Description: * Working voltage: DC48V * Static current::
