<p>AT34 USB 3.0 Tester Power Meter 3.7-30V 0-4A Voltage USB Tester Multimeter</p> <p>Features: AT34 adopts 0.96-inch IPS high-definition color LCD screen,</p> <p>Display the charging status, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators of electrical appliances at a glance, 160-degree wide viewing angle, high brightness, and long life. Quick charge identification,</p> <p>Wide compatibility: AT34 supports QC2.0, QC3.0,</p> <p>Suitable for iPhone 2.4A\/2.1A\/1A\/0.5A,</p> <p>Applicable to Andriod DCP, fast charging protocol identification, let you know the charging status of the phone.</p> <p>Power-off storage data is guaranteed: AT34 has a power-off storage function, which can store capacity and power data when the mobile power supply is powered off, which is convenient for subsequent viewing and convenient for mobile power capacity and power measurement. Note: Other USB testers without power-down storage function cannot test capacity and power.</p> <p>Measure the quality of the charger: connect the same load, compare no-load and load, the larger the voltage drop, the worse the charger's capacity and quality are; the voltage drop is not obvious or the voltage rises (leisure loss compensation function) This charger The smaller the capacity, the better the quality. S4-bit precision, more accurate measurement; measure load equivalent impedance and power; thermometer function,</p> <p>Celsius and Fahrenheit free switching: using high-precision thermistor sensor;</p> <p>USB 3.0 interface: Compatible with USB 2.0, support high current test, support USB3.0 interface mobile hard disk and U disk test.</p> <p>Features: Model: AT34 Measuring Voltage: 3.70-30.00V</p> <p>Measuring current: 0-4.000A capacity</p> <p>Measuring range: 0-9999mAh energy</p> <p>Measuring range: 0-9999mWh-9999Wh</p> <p>Load impedance measurement range: 1 - 9999.9</p> <p>Temperature measurement range: 0~80 \/ 32 F~176 F</p> <p>Operating temperature range: 0~45 \/ 32 F~113 F</p> <p>Display: 0.96 inch color LCD</p> <p>Voltage measurement resolution: 0.01 V</p> <p>Current measurement shunt rate: 0.001A</p> <p>Power accuracy: (0.8%) 25</p> <p>Measurement accuracy: 19</p> <p>Power measurement range: 0-120W</p> <p>Temperature measurement error: 3 \/ 6 FRefresh</p> <p>Frequency: 2Hz</p> <p>Package includes: 1X USB 3.0 Tester Power Meter</p>