Description
Detect the presence of obstacles with this infrared transmitter/ receiver pairAn output relay is driven if the beam is brokenCould be used to detect intruders if the output is hooked up to an alarmAlso link it to the Ding Dong Kit (Order Code: N44FL) to form an automatic doorbellTransmitter and receiver each require a 9V PP3 or a DC 9V power supply
