The Wattstopper HB300C-B is a 24 VDC cold-temperature PIR high bay base module designed for automatic occupancy-based lighting control in industrial high bay spaces where low ambient temperatures are a concern, supplied with a junction box for fixture-embedded or ceiling installation. Rated for operation from -40F to 131F, it pairs with separately ordered HBLx modular lenses supporting mounting heights from 20 to 40 feet and connects to BZ Power Packs for line or low voltage applications. UL listed, RoHS compliant; DIP switchselectable time delay from 15 seconds to 30 minutes; PIR sensitivity adjustment (Min/Med/Max); 5-year warranty.