... group controller,sliding door control board,garage door control board,rolling shutter controller board and other accessories. 1-CHANNEL RECEICER SERIES, R5101,R5102,R5103 ... Transmitter stored30PCS,300PCSconnectionCABEL CONNECTION AND TERMINAL CONNECTIONworking door and window for Control board,remote, 1-channel wireless receiver with 433.92Mhz frequency