REVERSE POLARITY PROTECTION: This 12V voltmeter is easy to read, can monitor battery voltage in real time, and has reverse polarity protection, making it easy to see the battery status. Detect the battery voltage status between fully charged and discharged in good time with this DC voltmeter. REAL-TIME VOLTAGE DISPLAY: Digital voltmeter display - accurate 3-digit LED digital display. With the red LED display, the numbers are easy to read and the display is clear at night. SIMPLE AND COMPACT: Mini size and easy to install, very suitable for voltage testing. Waterproof and durable, long service life. Digital car voltmeter with measuring range: 8V - 26V. WIDELY USED: Voltage measurement purposes can also be used for other products. Suitable for 12V 24V, motorcycles, RVs, SUVs, SUVs, ATVs, boats, ships, trucks, tractors, automation stations, distribution automation, test equipment, voltage regulators etc. Color: black Material: plastic + metal Package contents: 1 x Car voltmeter 2 x Insulated terminals 2 x Screws 2 x Cables Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.