... development, etc. Main FunctionsAs laser source and optical power meter Absolute and relative power testSingle end for dual wavelength ... groupsKey Features1. Multi wavelengths precise measurement 2. Big LCD displaying, and have the real clock 3. Multi adapters, FC, SC ... , 1625, 850--1310, 1490, 1550, 1625, 850 and 1300Detector typeInGaAsAuto Identify Frequency270Hz,1KHz,2KHzPower range (dBm)-50 ~+26 ...