· Creates an invisible alarm barrier in seconds · 20m (75ft) range · 3-mode sounder - chime, continuous chime and siren and 3 volume settings · Extremely simple to set up Switch on the transmitter, line up the receiver (up to 20m away) and switch on. The receiver will sound whenever the invisible infra-red beam is broken. It can be set to chime once or chime continuously (with volume adjustable to low, medium or high) or set to a continuous high level siren. Each pair features a coded infrared transmission and a switch for high or low power output. Both of the units require three AA batteries or a 6V plug-in mains adaptor each (sold separately).
Securirty Beam Barrier Alarm20m (75ft) range3 modes of sound and 3volume settingsTransmitter and receiverrequire three AA batteries oror 6V plug-in mains adaptor(Sold separately)
