Features High Accuracy: The fiber optical power meter has accurate testing, high‑accuracy optical power meter, accurate measurement data. Durable ABS Material: The The fiber light tester is sturdy and durable, made of ABS material, anti‑drop and durable, can be used with confidence. 7 Test Wavelengths: The fiber light tester is easy to use, optional kilometers, strong light source, 7 test wavelengths. Easy Operation: Multi‑purpose use, the fiber light meter can replace different interfaces for measurement, simple and practical operation. Long battery life: The battery life of the optical power meter is not less than 40 hours, which can be used for a long time. It supports wavelength memory function and user calibration, which is very easy to use. (Note: Battery is not included) Specification: Item Type: Optical Power Meter Material: ABS Model: AUA-9 Battery: 1.5V 2xAA Battery (not included) Purpose: Optical fiber communication Power measurement range: -70~+10dbm Probe range: InGaAs Wavelength range: 800-1700nm Standard wavelength (nm): 850, 980, 1300, 1310, 1490, 1550, 1625 Display resolution: Linear display: 0.1% Logarithmic display: 0.01dBm Working temperature: -10~+60℃ Storage temperature: -25~+70℃ Automatic shutdown time (min): 10 minutes Battery continuous working time: not less than 40 hours Battery (Note: Battery is not included) Package List: 1 x Optical Power Meter(Battery Not Included) 1 x Adapter 1 x Manual Package List 1 x Optical Power Meter(Battery Not Included) 1 x Adapter 1 x Manual