Check the listing for details. System Sensor B112LP Base, 4-Wire. Condition: New. Listed at 34.05 USD. The System Sensor B112LP Base is a versatile 4-wire mounting base designed for use with System Sensor fire and smoke detectors, offering reliable performance in commercial and residential applications. Engineered for easy installation, it accommodates devices requiring both signaling and power connections while maintaining a secure fit to ensure proper detector alignment. Its durable construction provides long-term reliability, resisting wear and environmental stress. The base supports multiple wiring configurations, making it compatible with a wide range of detection systems. With clear labeling and a standardized footprint, the B112LP Base ensures straightforward integration into existing alarm networks. Its design facilitates routine maintenance and replacement of detectors without the.