The wireless safety edge system WSE868K is a radio security system for Pressure Sensitive Protective equipments ( PSPE) as safety bands, mainly fitted for sliding gates or garage doors and road barriers. Operating frequency band 868 MHz.The radio transmission is enabled only after coupling RX and TX.The internal memory of the receiver can store up to 8 different transmitters. The receiver has 1 input for the auto-test, and 3 outputs; 2 dry contacts for the transmitter 1 dry contact for the low battery status. The transmitter can be supplied by battery or external power supply (12-24VAC/DC). It has 2 inputs for safety edges ; mechanical or resistive (8.2 KOhms and 10 KOhms).