Feature: 1. 7 Wavelengths: This fiber optic cable tester can measure 7 standard wavelengths, including 850/980/1300/1310/1490/1550/1625nm. 2. High Accuracy: This optical fiber power meter supports test range from minus 70dBm to 6dBm. The measurement error is less than 0.1dB. 3. LED Light: This power meter is equipped with LED light that allows you to operate in the dark environment. 4. Universal Interface: This optical power meter is designed with universal interface, suitable for SC, ST, FC interface. 5. Back Clip Design: This fiber optic cable tester adopts back clip design, exquisite appearance, easy to carry. Specification: Item Type: Fiber Optic Cable Tester Material: Plastic Wavelength: 800 to 1700nm Probe Type: InGaAs Test Range: Minus 70dBm to 6dBm Port: 2.5mm Universal Standard Wavelength: 850, 980, 1300, 1310,1490, 1550, 1625 (nm) Battery: AAA x 2 (Battery Not Included) Resolution: 0.01dB Operating Temperature: Minus 10 to 60℃ Storage Temperature: Minus 25 to 70℃ Working Time: 20 Hours General Interface Design: Suitable for SC, ST and FC Interface Product Size: Approx. 127 x 36.5 x 28mm / 5.0 x 1.4 x 1.1in ( Manual Measurement, Slight Error May Exist ). Package List: 1 x Fiber Optic Cable Tester