Optical Power Meter 4 in 1 DC70 / OPM Fiber Optical Cable Tester

Item Type: Optical Power Meter Material: ABS Red Light Detection Distance: 10km Power Supply: 1 x 650mah 3.7V lithium battery (built in battery) Wavelength Range: 850-1650nm Standard Wavelengths: 850nm, 980nm, 1270nm, 1300nm, 1310nm, 1490nm, 1550nm, 1577nm, 1625nm, 1650nm Display Resolution: Linear Display: 0.1% Logarithmic Display: 0.01dBm Working Temperature: -10-60℃ Storage Temperature: -25-70℃ Automatic Shutdown Time: 10 minutes Battery Continuous Working Time: Not less than 40 hours How to Use: Start up and use. PackageList: 1 x Optical Power Meter 1 x User Manual 1 x USB Cable 1 x Hanging Rope