Feature:1. WORKING RANGE: Mini optical power meter, power measurement range is 7010dbm, wavelength range is 8501650nm, efficient and durable.2. MULTIPLE FUNCTION: With fast and accurate measurement, no need to wait for warm up, which has relative power calculation and calibration function.3. GOOD PERFORMANCE: Sensitive chip and sturdy internal structure, low power consumption, auto shutdown in 10 minutes, can work continuously for 40 hours.4. COMPACT SIZE: The optical fiber power meter has a compact size and covers most of the maintenance needs of communications engineering.5. ABS SHELL: Handheld fiber power tester, the shell is made of ABS material, light weight, wear and aging resistant, and has a long service life.Specification:Item Type: Optical Power MeterModel: AUA M7Material: ABSPower Supply: 2 x AAA battery (battery not included)Power Measurement Range: -70~+10dbmProbe Type: For InGaAsWavelength Range: 850-1650nmStandard Wavelength (nm): 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650Display Resolution: Linear Display: 0.1%, Logarithmic Display: 0.01dBmWorking Temperature: -10-60Storage Temperature: -25-70Automatic Shutdown Time: 10 minutesBattery Continuous Working Time: Not less than 40 hours.Package List:1 x Optical Power Meter1 x Lanyard1 x User Manual