Check the listing for details. Handheld Optical Return Loss Tester Power Meter 2 in 1 Cable Tester RL IL OPM. Condition: New. Listed at 719.93 USD. Handheld Optical Return Loss Tester Power Meter 2 in 1 Cable Tester RL IL OPM Note:Batteries not included in shipping！！！ Product DescriptionThe handheld return loss tester is used to measure the return loss in the field fiber optic linking, in order to adjust the quality of the optic fiber end-face, and to make sure the fiber optic communication is in good condition. This handheld return loss tester can realize measurement of Return Loss, Insertion Loss, Output power, and also can be used as the laser source. Moreover, it has the data storage function of 500 measurement items. Function1. A variety of functional test pattern (RL.IL.OPM.OLS) 2. The test data uploading is stored.3. Support USB power supply function.4. Interface simple, easy to operate. Specification Technical SpecificationModelHandheld Return Loss Tester Return Loss TestingWavelength(nm)1310/1550Plus Width(nm)