Features:Real-time detection of the changing state, voltage, current, power and other data will be clear at a glance.High brightness, 160 wide viewing angle, IPS full-color display and colorful, long working life.Adopts the professional instrument to sample circuit and use the unique precision algorithm, which ensures the accuracy and stability of the product at the hardware and software level.The USB 3.0 interface is compatible with USB 2.0, which not only supports high current test, and also supports the test of mobile hard disk and USB disk of USB 3.0 interface.The shell is made of high quality PC material, high strength, good transparency.Specification:Brand: RuiDengModel: AT34Display screen: 0.96" color IPS displayVoltage measurement range: 3.70-30.00VVoltage measurement resolution: 0.01VCurrent measurement range: 0-4.000ACurrent measurement resolution: 0.001ACapacity accumulation range: 0-99999mAhEnergy accumulation range: 0-99999mWh-999.99WhVoltage measurement accuracy: (0.8% +4 digits, under 25Load impedance range: 1-9999.9Power measurement range: 0-120WTemperature range:0-80 / 32-176Temperature measurement error: 3 / 6Working temperature range: 0-45 / 32-113Refresh rate:2HzDimensions: Approx. 64*22*12mm/2.5*0.9*0.5inchWeight: Approx. 27gPackage Included:1 x USB TesterNote:1. Please allow small size error due to manual measurement. Thanks for your understanding.2. Only a USB tester, no other stuff included.