Welcome to our shop Features: - Compact body: detachable integrated design, mini size, lighter and thinner, easy to carry. - High precision sensor: high sensitivity and high precision and response speed. - High definition LCD display: Clear LCD display with backlight allows you to read values clearly even in the dark environment. - LED light function: Equipped with a small bright LED light, which can play a role 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 AutoCalibration: Adjust the test parameters at will according to the actual test. - Automatic shutdown: No operation in 10 minutes, energy-saving. - Additional Features: 5 km high-definition red light, replaceable ceramic core, intelligent sleep mode selection mode, energy-saving design, dual power supply mode, switchable units, network cable test, WiFi test, storage of results, wavelength data memory, frequency identification, overload protection, overcurrent protection, overvoltage protection, overload protection, short circuit, and overheating protection. - Wide application: applied in fiber optic engineering, fiber optic sensor research, optical element production, optical element research, etc. Features: - Material: ABS - Color: yellow - Power supply: 2 * 1.5V AAA battery (not included) / USB connection - Connector: HR / SC / ST - Power Measurement range: -70~+3dBm - Accuracy: 0.2dBm - Logarithmic Display Resolution: 0.01dBm - Linear display resolution: 0.1% - Wavelength range: 800~1700nm - Reference Wavelength: 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm - Red Light Working Wavelength: 650nm - Operating temperature: -10~60C - Storage temperature: -25~70C - Auto shut-off: No operation within 10 minutes Note: 1. Please allow small size error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. (Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after sales service) Thank you for meeting me.I hope this helps you. Wish you a happy life. Please read the User Manual before use. Packing List: 1 * Optical Power Meter 1 * Network Test Module 1 * Ceramic Core 1 * Lanyard 1 * User Manual (English)