ITEM NAME:Handheld Optical Power Meter High Precision Optical Fiber Tester Optical At D2K7 Handheld Optical Power Meter High Precision Optical Fiber Tester Optical At D2K7 Compatible:Huawei Fiber Type:Single Mode Connector Type:SC/APC Model Number:DBF-80 A reliable fiber optic power equipment is quite important in the era of high bandwidth. This hand held optic meter could help to inspect cables capabilities, calculate relative power loss, locate the fault and troubleshooting. We dedicate to providing customers with practical fiber tools, which means that you have an affordable choice for the functional and constructive optic meter. Calibrated Wavelength (nm): 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm Detector: InGaAs Measurement Range (dBm): -70 to +3 Input: DC 9V/1000mA Resolution (dB): Linear 0.1% / Non-linear 0.01dBm Connector: SC, FC, ST/ Universal 2.5mm Adaptor Operating Temperature(Celsius): -10 - +60 Storage Temperature(Celsius): -25 - +70 Relative Humidity: 90% (+30C) Working Hours: Greater than 48 hours Size: 190mmx100mmx48mm/7.48inx3.94inx1.89in colour:blue Material:plastic Package Contents: 1 * Optical Power Meter.Fiber Type:Single Mode. Resolution (dB): Linear 0.1% / Non-linear 0.01dBm. Connector: SC, FC, ST/ Universal 2.5mm Adaptor. Storage Temperature(Celsius): -25 - +70.