--Can easily measure the operating current of the output voltage of the USB port and equipment.
--Small size, no power, and other ancillary equipment, plug and play also detect USB charger output voltage and current are standard suitable for factories, Laboratory and users.
--This product can measure the voltage when the USB power supply equipment is empty and loaded, and the voltage and current when the USB terminal equipment is working.
--The current and voltage cycle display is simple, convenient and practical.
Small and portable, without additional power supply.