Active Half Egg Beam Photoelectric Motion Infrared Detecher IR Sensor Photo Eye Work with Alarm Host

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Product Features

This is Active Infrared Detector.Install each pair at the opposite positions Great to be installed for security system in school, office building, hosipital, home yard, etc. Detecting range can be reduced to 30% in bad weather conditions, like rain, dust, etc. English Usage Manual included in the pack. It will give you detailed instructions.

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