Thumb Voltmeter with LCD Digital Battery Voltage Display and 3 Speed Switch for Bike Bicycle

Features: No matter acid batteries, lithium batteries, water batteries, dry batteries Electric vehicles of all models (12V to 99V) Eliminate the analog power display Real time digital voltage display Accurately determine the remaining power and mileage Electric vehicle fault can be judged by digital voltage Specification: Color:black Material:plastic Weight: Approx. 126g Package List: 1 x Voltmeter (Switch screen printing random) .