Klein USB Digital Meter, USB-A (Type A)

The Klein Tools ET900 is a USB digital meter for common standard USB-A (Type A) ports including Qualcomm Quick Charge® 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 port that has the ability to deliver power. It requires NO batteries as it draws power from the power source to function.

WARNING

• To ensure safe operation and service of this meter, follow all instructions. Failure to observe warnings can result in severe injury or death.
• This meter will NOT display current below 50 milliamperes, even if it is allowing this to pass through. NOTE: The display will show zero current.
• Do NOT use with ports that operate outside of the rated voltage and current. NEVER use on a circuit with voltage or current that exceeds the maximums specified for this device.
• Do NOT use with ports that operate outside of the rated voltage and current. NEVER use on a circuit with voltage or current that exceeds the maximums specified for this device.