Specifications Working Wavelength (nm) @ 800~1650nm Detector Incas Measurement Range (dBm) -70~+3 or -50~+26 optional (means two types power meter, user can choose to custom design) Uncertainty 5% Calibrated Wavelength (nm) 850,1300,1310,1490,1550 (more calibrated wavelength can be optional) Resolution (dB) Linear 0.1% or Non-linear 0.01dBm Optical Connector FC/ Universal 2.5mm adaptor (FC, SC, ST interchangeable connector can be optional) Power Supply Battery (3 AA 1.5V batteries) Battery Operating Time 240 hours Operating Temperature() -10 ~ +60 Storage Temperature() -25 ~ +70 Relative Humidity 0 to 95% (non-condensing) Dimension (mm) 152x74x26