The Blue Line intrusion detectors from Bosch Security Systems are for residential and light commercial applications. The plug-in, modular design has First Step Processing, which automatically adjusts the detector’s sensitivity level. The detectors have sealed optics to provide draft and insect immunity and compensate for temperature variations. The Blue Line offers the BLP1 standard passive-infrared detector, the BLP1-P with pet-friendly passive-infrared technology, the BLQ1 Quad passive-infrared technology with two individual detectors and eight detection layers, and the BLD1-P TriTech passive-infrared and microwave technology combination. Bosch Security Systems

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