... measurement 2.4 types of adapters (FC, ST, SC, LC) 3.Handled large LCD display Optical Power Meter (ST800K) Optical Power ... measurement2.2 Absolute power measurement of dBm or xW 2.3 Relative power measurement of dB2.4 Auto off function 2 ... ,SCST800K-B-50~+26FC,ST,SC,LCST800K-C-70~+3FC,ST,SCST800K-D-70~+3FC,ST,SC,LC Optical Power Meter (ST800K ...