Product DescriptionThis addressable duct smoke detector is designed to monitor air moving through HVAC systems and provide early warning of smoke in return or supply air ducts. It uses a photoelectric sensing chamber that offers reliable detection across a wide range of air velocities and environmental conditions and helps prevent the spread of smoke through building ventilation. The housing pivots to accommodate different duct sizes and allows sampling tubes to be installed from the front or back which makes placement flexible and installation easier. The detector includes ample wiring space and supports remote testing accessories to simplify maintenance. With dependable performance and clean integration into HVAC equipment this unit provides a professional solution for protecting commercial and institutional buildings where air handling systems must be closely supervised.