Klein Tools ET920 USB Digital Meter, USB-A and USB-C

The Klein Tools ET920 is a USB digital meter for Type-A and Type-C ports. It accurately and reliably measures and displays the USB port voltage, current, capacity, energy, and resistance simultaneously. It can function with any USB-A and most USB-C ports, including Qualcomm Quick Charge® ports that have the ability to deliver power. It requires NO batteries as it draws power from the power source to function.