Optical Fiber Rangers are a form of test equipment functioning similarly to an optical time domain reflectometer (OTDR).

The difference is that a fiber optic ranger is smaller in size and lightweight compared to an OTDR, and is generally considered a more cost-effective tool in analyzing and testing single mode fiber test applications.

Optical fiber ranger is test equipment that functions similar to an optical time domain reflectometer. It is used in single mode fiber test applications. The fiber optic ranger is much smaller size and lighter weight compared to the fiber optic OTDR, and it is much more cost effective. They are used in optical fiber links troubleshooting, maintenance and test.

During its working process, the fiber optic ranger will injects the laser pulse into the optical fiber to check and collect the reflected light waves. Although the optical fiber ranger does not either display the trace of the fiber or give any information about the fiber and event losses, it can identify types and locations of both bases on a set of pre-determined threshold values and goes throughout the entire length of the fiber under test. optical ranger features the low price, easy to use and portable design.