System Sensor B116LP Smoke Detector Base

The System Sensor B116LP smoke detector base is a mounting and electrical interface for System Sensor ionization and photoelectric detector heads in two-wire fire alarm systems, providing a reliable connection point for life-safety detectors in commercial buildings such as offices, schools, hospitals, and industrial facilities. Built from flame-retardant plastic, the base supports ceiling or wall mounting and features screw terminals with a Form C relay contact for integrated signaling within fire protection networks. Key specifications include a 157 mm base diameter and 24 mm base height, 24 V DC operating voltage, and an operating temperature range of 0 °C to +49 °C. The unit is UL and ULC listed and designed to work with compatible detector heads for repair, retrofit, expansion, or replacement projects in fire alarm control networks and building management systems. Common replacements include System Sensor B401B, B210LP, and B501.