Complete function, easy operation, and reliability. I. Features l 4.5Bit LCD display, multi-unit display modes for shift: nW,uW, mW,dBm,dBl Automatic range switchingl Automatic turn-off time can be setl Automatic resetl Multi wavelength measurement, Auto frequency identifying: 270Hz1kHz2kHzl Data memory function. Up to 1000 groups.l Setting serial number for instrument and instrument self- ...