This product displays the current and voltage values your USB devices draw. It can measure between 3.5V and 7V DC and up to 3A (Generally, USB devices operate in between 4.75V - 5.25V DC). It makes a measurement every 3 seconds.
1. 100% Brand New.
2. Color: Blue
4. Type: tester
5. Workable range: U=3~7.5V I=0~2.5A
6. Resolution: Voltage10mV ;Current 1mA
7. Error range: Voltage <1% Current<2%
8. Full-scale voltage drop: 200mV
9. Work temperature:0-60C
10. Simple and convenient to use.
11. Portable and easy to carry.
12. The voltage and current will be displayed circularly.
13. Plug and play,it can work without additional power supply.
14. The USB tester can test voltage and current of the power supply equipment with USB port .