Test fiber cable on the roll or installed: pulsing light source for testing fiber optic cables

It is important to check fiber optic cables for continuity both on the roll and after installation. This visible LED light source connects to one end of a fiber optic cable and is bright enough to be easily seen at the other end, yet won’t hurt your eyes. Signal can be set for either steady or unique flashing mode, which makes tracing cables easier in a crowded cabinet. Easily connects to most 2.5mm ferrule F-O couplers- ST, SC, RSD, and FSD. Uses one 9V battery (included). Fiber cable not included. Compact size: 4.0 x 2.4 x 1.0 in (10.2 x 6.1 x 2.5 cm).