Product description
Measure the current and voltage of the power supply unit through the USB port. and play without additional power.
The voltage and current will display a circle.
Small size, easy to carry.
Possible range: 4-20V, 0-3A.
Resolution: voltage is 10mV, current is 10mA.
Error range: voltage<± 1%, current<± 2%.
Full scale voltage drop: 200mV.
Operating temperature: 0-60 ° C.
1 x USB current voltage capacity tester