ITEM NAME:12V relay 4CH 433MHz wireless RF Remote Control Switch Transmitter +2 Receiver.Working frequency: 433mhz. Frequency: 433mhz. 2 x Transmitter. Receiver sensitivity: more than -105dBm. Max load current: 10A. Self-lock: connect the JP1 with the cutting out cap. Jog: the cutting-out cap is non-occupation, JP1 and JP2 do not connect either.
