Features: and high quality Real-time digital display, waterproof, low pressure, high voltage warning function DC voltage measurement helps maintain normal vehicle voltage and prolongs vehicle service life LED panel digital display provides quick and accurate readings, intuitive and convenient Compact size, easy to carry, does not obstruct riding, supports safe operation Easy to install with included fittings; securely holds the meter in place and resists movement, ideal for voltage monitoring Package Includes: 1 x Voltmeter + Electronic Clock + Thermometer Specifications: Material: Plastic Size: 15x29.5x58.5mm / 0.6x1.16x2.3 in Function: Voltage display, temperature display, clock display Note: Please allow 1-3cm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual item color. Wiring method: Red wire connects to the battery's positive terminal, black wire to the negative terminal, and blue wire to the main power switch. After powering on, the boot screen appears, followed by time display (initial time after power off is 12:00). Time format is 24-hour system. Battery voltage measurement range: DC 8V–72V. Temperature range: -30°C to 70°C