Explore the Klein Tools ET910, an all - in - one digital meter and tester for most common USB - A ports, including Qualcomm Quick Charge® ports. This amazing device precisely measures and simultaneously shows the voltage, current, capacity, energy, and resistance of USB ports. It comes with built - in fixed loads to test the maximum current delivery capacity of USB ports, eliminating the need for external loads. It works with any power - delivering USB - A port and draws power directly from the source, so no batteries are required. The package includes one USB digital meter and tester. Key features are: operating in 3 to 20V DC and 0.05 to 3A (monitoring mode), having built - in test loads of 0.5A, 1A, 2A, and 3A, continuous 1000 - hour monitoring of voltage, current, etc., testing common USB - A ports, storing and recalling up to 10 readings, and voltage and current overload detection. Its specifications are: a maximum capacity of 99,999mAh, an LCD display, IP20 ingress protection, USB - A (Type A) type, a maximum energy delivery of 999Wh, a maximum resistance of 400 ohms, and a voltage range of 3 to 20V DC.
Using the Klein Tools ET910 is a breeze. First, connect it to the USB - A port you want to test. It will start measuring and displaying the voltage, current, capacity, energy, and resistance right away. You don't need to connect any external loads as it has built - in ones for testing the maximum current delivery. To recall stored readings, use the appropriate function on the device. Remember, this device draws power from the USB port, so no batteries are needed. As for maintenance, keep it clean and dry. Avoid exposing it to extreme temperatures or physical damage. If there's a voltage or current overload, the device will detect it. In case of any issues, it's best to contact Klein Tools' customer support.
