INFRARED BURGLAR ALARM
Categories : Series 5 Precaution Equipment ,  Burglar Alarm , 
An invisible, modulated InfraRed beam is sent by a transmitter (TX) over a distance of up to 8 metres and detected by a receiver (RX). If the beam is broken by an intruder, the RX detects the break and activates an output relay to sound an alarm or initiate a telephone dialer (not supplied). Both delay times and sensitivity are adjustable to suit the security application.
Technical Specification