Description <br> Description: <br> Electrical power USB capacity voltage tester current meter monitor voltmeter ammeter <br> 3 in 1, 8 in 1, 9 in 1 three types <br> Testers are widely used in the quality inspection of 3C digital peripheral products <br> Display the state of charge, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators <br> Using high-precision thermistor sensor for more accurate measurements <br> Specification: <br> 8 in 1: <br> 1. Voltage: DC 4-30V <br> 2. Current: 0-5A <br> 3. Time: 0-99hours <br> 4. Power: 0-150W <br> 5. Capacity: 0-99999mAh <br> 6. Electical energy: 0-999.999Wh <br> 7. Packet data:1-9group <br> 8. temperature <br> 9. Setup Key <br> Easy to use: Click the button once check save packet data (Time, Wh, mAh). Long press button for 3 seconds to clear the current single set of saved data (Time, Wh, mAh). <br> 3 in 1: <br> QC2.0 3.0 <br> Measuring range 4-20V(V) <br> Input voltage 4-20V(V) <br> Output voltage 4-20V(V) <br> Ambient temperature -10-60(°C) <br> Voltage measurement error 1% <br> Easy to use <br> The IN-input connects to the output port of the charger <br> Reset-clear key, press 3-5 seconds to clear the screen <br> OUT-output connected to the USB port of the data cable <br> Input voltage display window (4-20V), accuracy +-1% <br> Charge current display window (0-3A), accuracy +-1% <br> Battery capacity display window (0-99999mAh) <br> Working hours display window (0-99H) unit minutes <br> Working time and space display memory function after power off <br> 9 in 1: <br> Time cut-off power supply <br> Resistance: 0-999.99 <br> Power: 0-150W <br> Voltage and current: DC4-30V; 0-5A <br> Timing, Delay: 0-99 hours; 0-24 hours <br> Voltage over-current protection range: 30V / 5A <br> Monitoring Content: USB voltage, current, power, power, timing and other data <br> Electical Energy: 0-999.9WH <br> Package Includes: <br> 1 Piece USB Tester <br>