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![Infrared Security Beam](https://images.findtheneedle.co.uk/findtheneedle/products/4698427.jpg)
This product can be used to set-up an invisible security system using infrared (IR) beams. When the beam is broken (or the power supply cut) the relay is tripped. This can be used to sound a bell or alarm...
For more information on Infrared Security Beam talk to QUASAR ELECTRONICS LIMITED
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