Smoke LH-94 horn smoke detectors have five lines are the red, black, green, blue, yellow how wiring
Red and black are positive and negative lines. Green, blue and yellow are COM lines. They can be connected to N.O/N.C as required.
Smoke detectors, also known as smoke detectors, smoke detectors, smoke detectors, smoke detectors and smoke sensors, are mainly used in fire protection systems and are also used in security system construction. It is a typical equipment which is changed from space fire protection to civil use.