Feature:1. [CLEAR DISPLAY] The clear screen display of the power meter allows you to read clearly, and these details can greatly improve your experience.2. [SENSITIVE CHIP] The sensitive chip inside the power meter makes the display result accurate and can perfectly test the connection loss.3. [LONG BATTERY LIFE] The optical power meter has a long standby time, and the battery can be used for at least 40 hours, which is convenient for your use.4. [ABS HOUSING] The shell of the optical power meter is made of ABS which is resistant to drop and wear, and is also light and easy to carry.5. [AUTO POWER OFF] The optical power meter has an automatic shutdown function, which will automatically shut down after ten minutes of inactivity, extending the use time.Specification:Item Type: Fiber Optical Power MeterMaterial: ABSModel: AUA G710BOutput Optical Power: >50MWOutput Distance: 50KMPower Supply: 2 x AA battery (excluded)Power Measurement Range: -70-10dbmProbe Range: InGaAsWavelength Range: 800-1625nmStandard Wavelength (nm): 850, 980, 1300, 1310, 1490, 1550, 1625Display Resolution: Linear Display: 0.1% Logarithmic display: 0.01dBmWorking Temperature (): -10 - 60Storage Temperature (): -25 - 70Automatic Shutdown Time (Minute): 10 minutesContinuous Working Time of The Battery: Not less than 40 hours.Package List:1 x Fiber Optical Power Meter1 x FC Conversion Connector1 x Instruction