Wireless communication using multi frequency technology between F-box and safety edge transmitter junction box for wireless optical safety edge. 

The F-box with a built-in WiFi module, this allow users to linked with "F-linX" APP for "safety center" to track all information about wireless optical safety edge of the door and gates.

Optiacal edge sensor set(OSE): OSE-6 (TX 6m, RX 1m), OSE-10 (TX 10m, RX 1m)