No more guessing if the fiber is live. Quickly check fiber activity polarity and connectivity. No setup or interpretation required C just place in front of the fiber end face or port and a light and tone indicate an active fiber. This pocket-sized tool tests single-mode multimode UPC and APC patch cords and ports using a non-contact detector. The FIBERLERT-125 detects for the presence of 850 nm to 1625 nm optical light.

Fluke Networks FIBERLERT-125 – Live Fiber Detector
$58.67