TL510 mini handheld optical power meter is an accurate, durable and convenient portable test instrument specially designed for installation, operation and maintenance of optical fiber networks. It has a smart appearance, switchable backlight display, automatic shutdown function, ultra-wide optical power test range, precise test accuracy, and a brand-new user self-calibration function and universal interface design.According to the power detection range, the optical power meter is divided into two types: A type and C typeA: -70~+10 dBm, used in data communication fieldC: -50~+26 dBm, used in radio and television, video surveillance and other fieldsPower measurement range dBm-70～+10-50～+26Wavelength measurement range nm800～1700Calibration wavelength nm850, 1300, 1310, 1490, 1550, 1625Probe typeInGaAsmeasurement accuracy<;±3% (-10dBm, 22℃)Display resolution dBLinear display: 0.1%, logarithmic display: 0.01dBmWorking temperature ℃-10～+50Storage temperature ℃-20～+70Relative humidity90% (+30℃), non-condensingOptical interfaceFC, SC (optional for ST LC)power supplyThree AAA batteriesBattery continuous working time h120 hoursAutomatic shutdown time min10Weight g160Dimensions mm130×63×29