Orisec W-ROX-1 Wireless Relay Output Expander, 2 Way Wireless, 1A 24V NO/NC Output, 1 zone input, up to 3 keyfobs, stand alone or Orisec, temperature Sensor, Supply Voltage 12-24V DC, Consumption 27mA,Dimensions (wxhxd) 25 x 123 x 29mm