[Accurate identification] This visual fault locator can easily and accurately detect and locate fiber breaks, poor connections, bends or cracks. It can run in CW or pulse mode. VFL will emit 650 nanometer red light for fiber and positioning. Breaks or malfunctions will refract the light in the fiber.[Excellent function] The fiber tester has multiple functions including constant output power, low battery warning, long battery life, and longdistance detection. Efficient fiber routing and continuity check produce a bright light in the faulty area.[Wide application] Universal 2.5mm connectors designed for LC, ST, SC, FC can interfere with the round and square of different fiber optic cables, and test singlemode and multimode cables. Applicable to: integrated wiring system and optical fiber engineering; CATV engineering optical network maintenance; photoelectric communication; optical measurement drive engineering; optical equipment production and research.[Detection distance] This visual fault locator has 30mW strong light source output power, constant output power, strong red light 2030 kilometers in the fiber optic cable, highefficiency power supply circuit provides stable power, continuous wave and pulse mode.[Practical design] With battery, no additional purchase is required. Small and light, penshaped design with bag, easy to carry, easy to check fiber faults, visual fault location, the design uses stainless steel head and aluminum body to prevent collision and dust, and the shell ground design effectively prevents electrostatic discharge damage.colour: blackMaterial: metal and plasticSize: 17.5x2.6x2.6cmPackage Contents:1 x 30mw VFL Red Light Pen1 x Carrying case1 x Hanging rope1 x AAsize BatteriesOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a littFiber Visual Fault Locator 30M SZRH AF