... range, high precision and brand-new user automatic calibration function and high performance in application makes it ... , 1490nm,1550nm,Measurement Range: -70 to +3dBmHandheld Power Meter C--Wavelength: 850nm,980nm , 1300nm, 1310nm, 1490nm,1550nm ... Range: -50 to +26dBm 1. SpecificationsModelHandheld Power Meter AHandheld Power MeterCWavelength Range(nm)*1800~1600Detector TypeInGaAsMeasurement Range( ...