SENSITIVE AND RUGGED: Optical multimeter has sensitive chip and rugged internal structure. Low battery consumption, support 40 hours of continuous workSCRATCH RESISTANT ABS: Fiber tester use excellent material, possess impact resistance, scratch resistance, environmentally friendlyCOMMON INTERFACE: Mini optical fiber power meter has 10 wavelength and , 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650nm and SC, ST, adapter. Covers most of the requirements of communication engineering maintenanceENERGY SAVING AND ACCURATE: Fiber optic power meter adopt for InGaAs probe, realize accurate measurement, 10 minutes automatic shutdown, energy savingFAST AND ACCURATE: Optical power meter no need to , plug and play, bring accurate measurement, relative power calculation, calibration functionItem Type:Mini Optical Fiber Power MeterDetection Distance of Red :10kmPower Supply:Built in 1 x 3.7V lithium battery, Capacity: 650mahProbe 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:0.01dbmOperating Temperature:-10-+60Storage Temperature:-25-+70Automatic Shutdown Time:10minBattery Last Time:Not less than 40 hoursHow to Use:Boost and use directly.Type: DC70(-70-+10DBm)Colour:As ShownMaterial:MetalPackage Contents:1 * Optical Fiber Power Meter1 * USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.