... optional 1. Brief introductionWith a wide range of functions, ST800K optical power meter is a powerful tool for use in fiber ... FC, ST, SC or FC, ST, SC, LCWorking temperature (°C)-10~+50Storage temperature (°C)-30~+60Weight (g)430 (without batteries)Dimension ... battery volume)Auto power off time (min)10Products of ST800K Optical Power Meter Series Model No.Power test range(dBm)Adapter ...