Type KL-320 Wavelength 800 ¡«1700 nm Detector InGaAs Measurement Range -50¡«+26 dBm Uncertainty ¡À5% (-10 dBm,20¡À3¡æ) Calibrated Wavelength 850¡¢980¡¢1300¡¢1310¡¢1490¡¢1550 nm Resolution 0.01 dBm Connector FC or Universal 2.5mm adaptor Power Supply Alkaline Battery(3 AA 1.5V) Battery Operating Time 240 h Operating Temperatrue -10¡«+60 ¡æ Storage Temperatrue -25¡«+70 ¡æ Relative Humidity 0¡«95% (non-condensing) Dimension 152mm(W)¡Á74 mm(D)¡Á26 mm(H) Weight 200 g