System Sensor B224BI-WH Plug-in Isolator Detector Base (White)The System Sensor B224BI WH is a white plug in intelligent addressable isolator base for Select Series detector heads that helps keep an SLC loop operating during a short circuit. It isolates the shorted section from the rest of the loop, then automatically restores the loop when the fault clears, with up to 25 addressable devices typically isolated between isolator bases. Key Specifications: Type: Intelligent plug in isolator detector base (Select