Feature:1. 10 Wavelength: This fiber optic power meter has 10 wavelength, 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650 nm and with SC FC ST adapter for use.2. Auto Power Off Function: VFL optic power net cable tester has 10 mins automatic power off function and fast and accurate.3. Relative Power Calculation: No need to wait for warm up, optic power net cable tester can do plug and play with accurate measurement, relative power calculation, calibration function.4. Low Battery Consumption: VFL net cable tester adopts sensitive chip and rugged internal structure. Low battery consumption and longer working time.5. Requirements Covering: Fiber optic power meter VFL covering most of the requirements of communication engineering maintenance.Specification:Item Type: Fiber Optic Power MeterMaterial: ABSRed Light VFL Detection Distance: 30kmPower Supply: AAA Batteries Required x 2 (Shipped Without Batteries)Probe Range: InGaAsWavelength Range: 850-1650nmStandard Wavelength: 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650nmDisplay ResolutionLinearity Display: 0.1% Logarithmic Display: 0.01dBmOperating Temperature: -10 - +60Storage Temperature: -25 - +70Auto Shutdown Time: 10 MinutesBattery Duration: Not Less Than 40 Hours.Package List:1 x Optical Power Meter1 x Lanyard1 x Instruction Manual