Feature:1. The product is very simple to starting up, with a one button opening function, which is very convenient to use.2. With LCD color display, vivid colors, giving you a better experience.3. Multiple protecting design: overcharge protecting, over current protecting, over voltage protecting, over power protecting, short circuit protecting and temperature protecting, it is safer to use.4. The built-in battery has a powerful battery life function, and the battery level will cycle when charging, but there is no special effect after recharging.5. With its own flashlight function, it can also check the line in the dark environment and save your time.6. The measurement error is small, and it supports manual calibration of values, and the test parameters can be adjusted according to actual test requirements.7. Supports seven test wavelengths, with a wider test range, and has a power-on memory function, which automatically remembers the wavelength before the last shutdown.8. It can automatically identify the optical fiber transmission frequency, which can be used to determine the lighting mode and whether it is continuous and intermittent during the construction process.9. With two unit of data display, you can choose the unit from nW, dB to display by press the button.10. This product supports there general interface: SC, FC, S-T so you can connect it with the other machines.Specification:This is an useful tool for you to test the optical power, it is very easy to carry, so you can take it with you to anywhere you want to use it, with LCD display screen, you can see the data more clearly, give you a better using experience. Come on and try it, it wil not let you down.Features:The product is very simple to starting up, with a one button opening function, which is very convenient to use.With LCD color display, vivid colors, giving you a better experience.Multiple protecting design: overcharge protecting, over current protecting, over voltage protecting, over power protecting, short circuit protecting and temperature protecting, it is safer to use.The built-in battery has a powerful battery life function, and the battery level will cycle when charging, but there is no special effect after recharging.With its own flashlight function, it can also check the line in the dark environment and save your time.The measurement error is small, and it supports manual calibration of values, and the test parameters can be adjusted according to actual test requirements.Supports seven test wavelengths, with a wider test range, and has a power-on memory function, which automatically remembers the wavelength before the last shutdown.It can automatically identify the optical fiber transmission frequency, which can be used to determine the lighting mode and whether it is continuous and intermittent during the construction process.With two unit of data display, you can choose the unit from nW, dB to display by press the button.This product supports there general interface: SC, FC, S-T so you can connect it with the other machines.Specifications:Main material: plasticsBattery: 1 * lithium battery, 600mAh (included)Power measurement-range: -70~+10Wavelength-range: 800~1700Detection area: 300umStandard wavelength: ±5%nmDisplay resolution: 850, 980, 1300, 1310, 1490, 1550, 1625Uncertainty:Linear display: 0.1% Logarithmic display: 0.01dBmWorking temperature: -20~+60(℃) Storage temperature: -25~+70(℃) Working current: K35mARecharging current: 300mAAutomatic shutdown time: 10 minutesItem size: 127 * 45 * 20mm / 5.0 * 1.8 * 0.8inItem weight: 87g / 3.1ouncePackage size: 150 * 62 * 40mm / 5.9 * 2.4 * 1.6inPackage weight: 120g / 4.2ouncePacking list:1 * Optical Power Meter1 * User Manual1 * USB CablePackage List:1 * Optical Power Meter1 * User Manual1 * USB Cable