2-channel access door receiver 1power supply: 12-24VAC/DC 2transmitters stored: 30pcs ... control systems.We serve programmable wireless remote,transmitter,receiver,tubular motor control panel,motor group controller,sliding door control board,garage door control board,rolling shutter controller board ... connectionR5111 R5113 R5115 R5117: CABLE CONNECTION 12V DC wireless remote and receiver 433.92Mhz