Accurate Voltage Measurement: This voltmeter accurately measures voltages from 7V to 55V, making it versatile for various battery types including acid and lithium-ion batteries. HD LED Indicator: Features a high-definition LED display that provides clear and immediate voltage readings, ensuring you can monitor your battery's health and status at a glance. Compatibility: Designed for a wide range of applications, this voltage tester is compatible with 3S-12S battery configurations, ideal for DIY electronics, vehicles, and renewable energy systems. and Reliable: Built with robust materials, this voltmeter is engineered to withstand regular use in tough environments, offering both reliability and . Color:As Shown Material:ABS Package Contents: 4 * DC7-55V LED indicator voltage and power indicator set 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 measurement allowed error is +/- 1-3cm.