Testers are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts.Real-time detection of the state of charge of the appliance, voltage, current, power and otherindicators at a glance Measuring voltage: 3.7V-30V measuring current: 0-4A. The AT34 uses a 0.96-inch IPS high-definition color LCD display to display the state of charge of the appliance, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators at a glance. 160 degree wide viewing angle,high brightness and long working life. Fast charge recognition, widely compatible: AT24 supports QC2.0, QC3.0, APPLE 2.4A or 2.1A or 1A or 0.5A, Andriod DCP,S famous phone ast charge protocol identification, let you know the state of charge of the phone. Power-off storage, data is guaranteed: AT34 has power-off storage function, which can store capacity and energy data when the mobile power is cut off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobilepower.Note: Other USB testers that do not have a power-down storage function cannot test capacity and energy. 4-bit accuracy for more accurate measurements Measure the load equivalent impedance and power Thermometer function, Celsius and Fahrenheit free switching: Using high-precision thermistor sensor USB 3.0 interface: Compatible with USB 2.0, support highcurrent test, support USB3.0 interface mobile hard disk and U disk test. Measure the quality of the charger: connect the same load, compare the no-load and the load, the greater the voltage drop, the worse the charger capacity is, the worse the quality the voltage drop is not obvious or the voltage rises (leisure loss) Compensationfunction) The better the load capacity of this charger, the better the quality. Style Name:AT34 Technical Parameters: Model: AT34 Measuring voltage: 3.7-30V Measuring current: 0-4A Capacity measurement range: 0-99999mAh Energy measurement range: 0-99999mAh-999.99Wh Load impedance measurement range: 1-9999.9 Temperature measurement range: 0C-80C or 32F-176F Operating temperature range: 0C-45C or 32F-113F Product size: 64mmx22mmx12mm Display screen: 0.96 inch color LCD Voltage measurement resolution: 0.01V Current measurement resolution: 0.001A Voltage measurement accuracy: (0.8 percent and 4 words) 25 C Current measurement accuracy: (1 percent and 4 words) 25 C Power measurement range: 0-120W Temperature measurement error: 3C or 6F Refresh rate: 2Hz Applications: Testers are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts. Real-time detection of the state of charge of the appliance, voltage, current, power and other indicators at a glance Measuring voltage: 3.7V-30V measuring current: 0-4A Thermometer function, Celsius and Fahrenheit free switching: Using high-precision thermistor sensor, it can measure the ambient temperature (when powering up for the first time), and also know the working temperature state of the tester in real time. USB 3.0 interface: Compatible with USB 2.0, support high current test, support USB3.0 interface mobile hard disk and U disk test. Package Including 1 x AT34 USB Tester