DSC PG9974P PowerG Mirror-Optic PIR Motion Detector

The DSC PG9974P uses high-gain elliptical mirror optics to detect movement across a 49-foot, 90-degree area. Its obsidian-style reflective surface filters visible light interference while preserving infrared sensitivity, making the sensor a strong fit for larger rooms and interiors with more demanding detection conditions.

Active infrared anti-masking can identify an attempt to cover the detector, and the patented V-Slot housing adds resistance to physical interference. True Motion Recognition, digital temperature compensation, front/back tamper, and optional pet immunity up to 88 pounds work together to reduce nuisance events without giving up broad room coverage.

Retail floors, office lobbies, workshops, and larger residences all benefit from that combination of range and resilience. In an Allied business security plan, the PG9974P can watch a broad interior approach while PowerG communication avoids the disruption of running a new detector cable through finished space.