USB Testers

The Keweisi KWS-10VA Dual USB Tester is a compact tool that measures and assesses the charging capabilities of two devices. It can accurately gauge voltage (3-8 volts) and current (0-3 amps) when connected to a charger, power bank, PC, laptop, etc. The clear display provides instant readings of voltage and amperage, allowing you to determine the optimal charging speed and identify any potential limitations caused by the charger or cable. Specifications: Voltage : 3V-8V, ± 1% Current : 0-3A, ± 1% Connectors: USB 2.0 Male x1, USB 2.0 Female x2 Size : Approx. 60x15x28mm Package includes : 1 x KWS-10VA Tester

The Keweisi KWS-V20 USB Tester is a handy little device for measuring and diagnosing the output from USB ports and chargers. Able to handle from 4 to 20 volts and 0 to 3 amps. simply pop it into your charger, power bank, PC, laptop etc.. and connect a device to charge. The easy to read display will quickly show you Volts, Amps and mAh and time in use. Depending on the load you'll be able to see if the device is charging at it's best speed or if the charger (or cable) is the limiting factor.Features: It can measure the USB-powered devices empty and easy to use and practical. Compact and easy to carry, no additional power supply, plug and play. It can easily measure the output voltage of the USB port and the device operating current or load voltage. Detect any USB charger such as PC USB, home charger, car charger. Wide range of applications, any phone, any electronic product. Suitable for factories, laboratories and personal use. Specifications: Voltage : 4V-20V, ± 1% Current : 0-3A, ± 1% Time : 0-99H Battery Capacity : 0-99999mAh Connectors: USB 2.0 Male and Female Size : Approx. 7.2cm x 2.2cm x 1.1cm / 2.83" x 0.87" x 0.43" Package includes : 1 x USB Current Voltage Detector Battery Tester Meter Additional Resources KWS-V20 Review