... for optical fiber network.Handheld Power Meter Specification Model: Handheld Power Meter A--Wavelength: 850nm, 980nm, 1300nm ... 1490nm,1550nm,Measurement Range: -70 to +3dBmHandheld Power Meter C--Wavelength: 850nm,980nm , 1300nm, 1310nm, 1490nm,1550nm ... : -50 to +26dBm 1. SpecificationsModelHandheld Power Meter AHandheld Power MeterCWavelength Range(nm)*1800~1600Detector TypeInGaAsMeasurement Range ...