describe: 1. G10 series, mini optical power meter, high precision;2. Ergonomic design, one-handed operation;3. Product features: self-calibration, USB flash charging, seven wavelengths, LED lighting, backlight support, data storage;4. Supports various charging methods such as power bank, adapter, notebook car, etc. One full point can be used 3500 times;5. Support three interfaces, support SC//ST three common optical fiber interfaces, plug and play.Specification:Color: yellowMaterial: ABSProduct Name: Optical Power TesterWeight: 42gTest range: (-70+10)DBmWavelength range: -800~1700Uncertain range: 5%0Standard wavelength: -850/980/1300/1310/1490/1550/1625NMDisplay Resolution: 0.1%Logarithmic display: 0.01dBmFrequency identification: -0HZ, 270HZ, 1000HZ, 2000HZAutomatic switch time: 10 minutesDimensions: 34 x 17 x 125MMQuiescent current: Less than 18UAWorking current: 25MAProbe Type: IngaasCharging voltage: 5VEndurance time: 20HCharging current: 500mAPower supply mode: built-in lithium batteryPackage Contents:1 x G10 Optical Power TesterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.