Features: 1. Suitable for many kinds of batteries, such as lithium battery, lead-acid battery, water battery, dry battery, etc. 2. Suitable for 12-99V electric bikes, scooters, tricycles and other electric vehicles. 3. It can automatically identify the voltage and can indicate the vehicle error according to the voltage. 4. Digital data display, green backlit, intuitive and accurate assessment of remaining capacity and mileage. 5. . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN Technical data: Material: plastic Black color Cable Length: 2 m/6,56 feet . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN List of things to pack: 1 * voltmeter for electric bicycles . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN . THUMB GAS SHIFTER WITH VOLTMETER GREEN