ACCURATE IDENTIFICATIONThe fiber optic cable tester can easily and accurately detect and locate fiber breaks, poor connections, bending or cracking. Specially designed for optical cable and line maintenance, this VFL pen could locate faults on cables, visually search for fiber breaks. WIRELESS CONNECTIONThe visual fiber fault locator adopts wireless connection, there is no loss for the optical fiber and the transmitter end face, and the output power is not affected by voltage fluctuations. The VFL tester kit is used for optical fiber tracking, optical fiber routing and continuity inspection. DETECTION DISTANCEThis 60mW fiber optic cable tester tool with strong red light battery output, high-efficiency power supply circuits enable stable power supply. This fiber optic source tester is energy-saving, can output power stably, is a good tool for optical fiber testing. WIDELY USEDWith 2.5mm universal interface, ensures a wide range of applications, the output distance is up to 60km, very practical. And the detector connector is designed compatibly for st, sc, fc interference both in circle and square shape of different fiber optic cables. ORDER NOW, WORRY-FREECustomer satisfaction is our top priority. We are so confident in the quality of our products that we can offer a one-year warranty! We will give you a professional and detailed reply within 24 hours. Click to buy now! Specification Type1 x Item Manual: Visual Fault Locator Material: Aluminum Universal Interface: 2.5mm (FC SC ST) Output Wavelength: 650nm 10nm Output Optical Power: > 60MW Battery Type: 2 x 1.5V AA Batteries (Battery not included) Fiber Optic Adapter: Universal Connector Output Distance: 60KM Operating Temperature: 0 to +60