The Keweisi KWS -V20 USB meter is a compact device that allows you to simultaneously measure voltage and current in USB ports . Simply connect it between the USB port of a charger or computer and the receiving device, such as a phone, flash drive, or external drive. The meter provides voltage and current information, allowing you to monitor the performance of your USB ports and the device charging process.
Technical specifications:
Voltage measurement range: 4-20V DC (±1% accuracy)
Current measurement range: 0.3-3A DC (±1% accuracy)
Charging capacity: 0-99,999mAh
Charging time: 0-99 hours and 59 minutes
Dimensions: 72mm x 23mm
The device is easy to use and requires no driver installation. It’s ideal for controlling and checking the current efficiency of USB ports , as well as monitoring the charging of power banks, tablets, and smartphones.