Wavelength(nm) 800~1700nm Detector InGaAs Measurement? Range (dBm) -70~+3 -50~+26 Uncertainty ±5% Calibrated Wavelength(nm) 850,1300,1310,1490,1550,1625 Resolution(dB) 0.01 Optical Connector FC(interchangeable SC,ST) / as well as 2.5mm universal Power Supply Alkaline Battery(3 AA 1.5V batteries) Battery Operating Time 240 h with 1.5V Battery(3) Operating Temperature() -10 ~ +60 Storage Temperature() -25 ~ +70 Relative Humidity 0 to 95% (non-condensing) Dimension(mm) 200 X90 X50 Weight(g) 285