The FR2 Fiber Ranger Optical Fault Locator is a rugged, lightweight, hand-held optical fault locator for multimode and single mode applications. It uses OTDR (Optical Time Domain Reflectometer) technology to pinpoint faults in optical cable that can be over 20 kilometers away. It operates at the industry standard wavelength of 1310nm and can display the distance to the fault in meters or feet. Useful applications for the FR2 include testing WAN’s, telecommunication spans, Fiber-to-the-Curb, installation and maintenance of multimode and singlemode fiber cabling, and Military systems. It’s also ideal for locating tight bends, crimps, faulty connectors, bad splices or breaks in fiber cables. Includes an easy to read LCD display and a single measure push-button for activating the unit’s measure operation. The Index of Refraction (IOR) is user selectable and the FR2 has the ability to detect up to seven multiple events.