F5 mirror photocell is the security device most used to an automatic gate. It´s a infrared light, when someone or something contact the light, the system sends a order to the gate.
It´s composed by a emitter device and receiver device.
The emitter device send a infrared lingt to the mirrow, then the light go bact to emitter device and close the cycle. They couldn´t be intalled mora than 4 meters.
If the light is stopped, the cylcle isn´t complete and the receiver device stop the gate movement.
You have to keep in mind:
– Rain and fob could close the distance.
– The sun couldn´t damage the cover element.