- Brand new and high quality.
- It can measure current and voltage of the power supply equipment with USB port.
- Plug and play, no extra power supply needed.
- The voltage and current will be displayed circularly.
- Small sized, easy and convenient to carry.
Workable range: 3.5 - 7.0V, 0 - 3A.
Resolution: voltage 10mV, current 10mA .
Error range: voltage