Description:1. Real-time digital display, waterproof, low pressure, high voltage warning function.2. DC voltage measurement, make the vehicle work at normal voltage, extend the service life of the vehicle.3. LED panel digital display, reading in seconds, more intuitive, fast and convenient.4. Small size, easy to carry, will not block driving, guarantee safe driving.5. Easy to install with necessary fittings, hold the meter in place, fix firmly and not easy to move, great for checking voltage.6. Wiring mode: the red wire is connected to the positive pole of the battery, the black wire is connected to the negative pole of the battery, and the blue wire is connected to the main power switch7. Flicker warning function for low voltage (below 12V) and high voltage (above 16V)8. IP67 waterproof function, free for riding in rainy days, will not be damaged by rain. Specification: Voltage: DC 6V-30V Function: voltmeter + electronic clock + thermometer Display: LED display Material: acrylic Waterproof degree: IP67 Color: black Power line length: 1.2m Package size: 11x10x10cm / 4.33 * 3.94 * 3.94in Package weight: 55g / 1.94oz Package includes: 1xVoltmeter 1xFixed base 2xCable tie 2xScrew