Features Experience Enhancing: This optical power meter also has the ability to clear the blue screen. Details mean professionalism, and a clear display of results or information can enhance the user experience. Calibration Function: The power measurement range is ‑70 to +10dbm, relative to the power calculation, with calibration function, can produce faster and more accurate data, very convenient. Low Battery Consumption: This optical power meter has a sensitive chip and a sturdy internal structure. The battery consumption is low and can work continuously for 40 hours with high endurance. 7 Wavelengths: Seven wavelengths are 850, 980, 1300, 1310, 1490, 1550 and 1625nm, as well as SC, FC, ST adapters. Cover most of the needs of communications engineering maintenance. Convenient Carry: This optical power meter does not need to wait for preheating, plug and play, small size, light weight, easy to carry, but also with LED light, very practical. Specification: Item Type: Optical Power Meter Model: AUA G710B Material: ABS Output Optical Power: > 15MW Output Distance: 15KM Power Supply: Requires AA batteries x2 (shipped without batteries) Power Measurement Range: -70 - +10dbm Probe Range: InGaAs Wavelength Range: 850-1625nm Standard Wavelength (nm): 850, 980, 1300, 1310, 1490, 1550, 1625 Display Resolution: Linear display 0.1%, logarithmic display 0.01dBm Operating Temperature: -10 - +60℃ Storage Temperature: -25 - +70℃ Auto Shutdown Time: 10 minutes Battery Life: Not less than 40 hours Package List: 1 x Power Meter  1 x FC Adaptor 1 x Instruction Manual Note: Please pay attention to the correct operation Package List 1 x Power Meter 1 x FC Adaptor 1 x Instruction Manual