... Dual testing channels 3.99.999% correct Bench-top optical Power Meter(Dual Channel) JW3201ND is updated version of JW3201 ... channel bench-top power meter. Targeting at the PLC encapsulation technology, JW3201ND power meter could monitor the dual channel power simultaneously and ... nm)850~1700Calibrated Wavelength(nm)850,980,1300,1310,1480,1490,1550,1625 Photo Detector In GaAsMeasurement Range (dBm)+ ...