
Digital Car Thermometer Self-mounted charger Real-time automatic exposure battery voltage Function 1: Suitable for 12V/24V models, display the temperature inside the car. Function 2: Plug in the car cigarette lighter socket to display the car battery voltage. Function 3: USB charging/fast charging function. Suitable for 12V and 24V batteries Output voltage: 5.0V Maximum output current: 3.5A