Specifications: 1) Operating voltage: 10-24V DC 2) Transmitting current: A) Receiver: 18mAB) Transmitter: 18mA3) Output contact capacity: 30V AC/DC, 0.5A4) Transmitting angle: 7.5 degrees 5) Interruption period: 100sec6) Operating frequency: 315MHz7) Operating temperature: -25C - 55C 8) Size (length): 60cm, 100cm, 160cm,200cm.