Features:- Compact body: Integrated detachable design, mini size, lighter & thinner, easy to carry.- High precision sensor: High sensitivity & high precision & high response speed.- High Definition LCD Display: The clear LCD display with backlight allows you to read the values clearly even in a dark environment.- LED Lighting Function: Equipped with a small bright LED lamp, which can act as a flashlight for simple inspection in the dark.- 3 types of interface supported: FC interface, SC interface and ST interface.- 7 optical wavelengths for selection: 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm and 1625nm.- DIY Self-Calibration: Adjust the test parameters at will according to the actual test. - Automatic shutdown: no operation within 10 minutes, energy saving.- Additional features: selectable intelligent sleep mode, energy-saving design, dual power supply mode, switchable units, result storage, wavelength data memory, frequency identification, overload protection, overcurrent protection, overvoltage protection, short circuit protection and temperature protection.- Wide application: applies to optical fiber engineering, optical fiber sensor research, optical element production, optical element research, etc.Specifications:Material: ABSColor: bluePower supply: 2 * 1.5V AAA battery (not included) / USB connection (use without battery)Connector: FC / SC / STPower measurement range: -70 ~ + 3dBmAccuracy: 0.5% 5% dBmLogarithmic Display Resolution: 0.01 dBmLinear Display Resolution: 0.1%Wavelength Reference: 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nmOperating Temperature: -10 ~ 60Storage Temperature: -25 ~ 70Auto Shutdown: No operation within 10 minutesItem Size: Approx. 118 * 65 * 30mm / 4.65 * 2.56 * 1.18inItem Weight: Approx. 140g / 4.94ozPackage Size: Approx. 130 * 77 * 60mm / 5.12 * 3.03 * 2.36in Package Weight: Approx. 260g / 9.17oz Note: Please read the user manual before use. Packing List: 1 * Optical Power Meter 1 * Lanyard