Features: 1. Precise cut and interface ensure perfect applicability, suitable for installation location and easy to install. 2. Double electricity and voltage display at a glance, more intuitive, voltage meter decimal point automatic shift, higher precision. 3. The meter can automatically identify voltage and electric quantity, with function of reverse connection protection. 4. Professional chip set provides excellent performance in the system. 5. This meter is suitable for 12V-72V battery car, lithium battery, polymer battery, nickel metal hydride battery, and for other power or voltage measurement, not suitable for large trucks, cranes, forklifts and other high-power vehicles. 6. The product adopts high-quality materials, effectively avoiding corrosion and wear, durable to use. 7. Wide range of use, applicable to lithium battery set, lead acid, automobile battery, electric vehicle battery, and other electric equipment. 8. Easy to operate, anti-aging and long service life, you can use with confidence. Specification: Item Type: Voltmeter Operating Current: 5-15mA Refreshing Speed: About 480ms once Lead Length: Approx. 20cm/7.9in Operating Temperature: -10℃-65℃ Product Size: Approx. 4.7x3x1.8cm/1.9x1.2x0.7in Color: Blue, Red (optional) Package List: 1 x Voltmeter