Cheap active infrared detector, Buy Quality infrared detector directly from China active infrared Suppliers: Double Beam Active Infrared Detector For Home Alarm System
* Outdoor double beam gain self-regulation,adaptable to terrible weather such as rain,fog and snow weather; * Special filter lens and circuit, anti-strong light jamming * Optical lensã€faster, more convenient and more exact adjustment* Lightning proof circuit design ( Excellent a...3&4 beams will be different price )