Pool and spa sterilizer -USB load tester USB type C load monitor Highlights generic brand USB load tester USB type C load monitor Description: Use this type c voltage detector to test the output of the power supply and monitor battery status. The liquid crystal display and is easy to read, the measurement is precise and can display up to two decimal places. Plug the charging cable into this USB voltage current tester and connect the tester to the charger, so you can see the charging status. Button operation: Short press once to change the display page. Quickly double-click the button to rotate the display page. Press the button for 3 seconds to erase the recorded date. Current and voltage calibration method: After pressing the button with a standard voltage of 5000V, you can release the button when the factory setting is displayed on the screen, and the product is automatically calibrated. specification: Voltage: 4-30V Display: 0.96 inch color screen Current: 0-5A Voltage resolution: 0.002A Capacity: 0-999999mWh Current resolution: 0.002A Load resistance: 1-9999.9 Power: 0- 150W Temperature: 0-80C Energy: 0.999999mWh Product interface: USB-C 24pin Package includes: 1 USB Type-C test meter Note: The product can NOT be connected to a load during calibration. Please contact us first if there are any issues with the product. The item's color may be slightly different from the pictures due to the light and screen setting difference. Please allow slight dimension error due to manual measurement. Thanks for your understanding.