Jonard Tools OFI-100 Advanced Optical Fiber Identifier with Built-in Power Meter and VFL

QUICK IDENTIFICATION: Quickly identify the direction of light being transmitted in the fiber and display the relative core power without damaging the fiber EASY IDENTIFICATION: Efficiently identifies the traffic direction and frequency (270Hz, 1KHz, 2KHz) with an audible warning, and LCD screen clearly displays the relative core power, signal direction, and battery life REVERSIBLE ADAPTER: Reversible adapter has one side for 2 mm and 3 mm fiber optic cables, and the opposite side is used for 250 µm and 900µm fiber