Features 7 Test Wavelengths The tester has 7 wavelengths, 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm, which can cover most communication technology maintenance needs. Easy Operation This optical power meter is easy to use, you don't need to preheat, plug in and go, and can perform relative power calculation. Self-calibration: users can self-calibrate the optical power meter to ensure the accuracy and fast response of the optical power meter. LARGE MEMORY This optical power meter can store 500 records and support display at any time, which is convenient for you to use. Low Battery Consumption The battery of this optical power meter can work continuously for at least 40 hours, and the battery life is strong. Specification: Item Type:Fiber Optic Power Meter Material: ABS Model: AUA G710B. Optical output power: >20MW Output distance: 20 km. Power supply: 2 x AA battery (not included). Power measurement range: -70-10dBm Probe range: InGaAs Wavelength Range: 800-1625nm 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 shut-off time (minute): 10 minutes. Continuous battery life: no less than 40 hours. Package list: 1 x fibre optic power meter. 1 x FC conversion port. 1 x instruction manual Package List 1 x Fiber Optical Power Meter 1 x FC Conversion Connector 1 x Instruction