KEWEISI USB ammeter

USB meter Keweisi KWS-V20 is a compact device that measures voltage and current in USB ports simultaneously. Simply plug it between the USB socket of a charger or computer and the receiving device, such as a phone, USB flash drive or external drive. The meter provides information on voltage and current, allowing you to monitor USB port performance and the charging process of devices.

Technical specifications: Voltage measuring range: 4–20 V DC (accuracy ±1%) Current measuring range: 0.3–3 A DC (accuracy ±1%) Charging capacity: 0–99 999 mAh Charging time: 0–99 hours and 59 minutes Dimensions: 72 mm x 23 mm

The device is easy to use and requires no driver installation. It is ideal for checking and monitoring the current performance of USB ports, and for monitoring the charging of power banks, tablets and smartphones.