Fluke FiberLert optical power meter

Quickly verify fiber activity, polarity, and connectivity with the FiberLert Live Fiber Detector. This pocket-sized tool tests single-mode, multimode, UPC and APC patch cords and ports with a non-contact / non-contaminating detector. The LightBeat feature flashes the LED, indicating a powered-on condition and good battery, a timer shuts FiberLert off after five minutes of inactivity to extend battery life.