High- measurement with a voltage range of DC7-100V and an accuracy of 0.1V; capacity percentage display with an accuracy of 1%. Multi-battery compatibility supporting lead-acid, ternary lithium, and lithium iron phosphate batteries, covering series configurations from 12V to 84V. Dual-screen dynamic display featuring a three-digit LED display for voltage and an option to show either capacity percentage or temperature. Intelligent safety protection with adjustable low-capacity and over-temperature alert thresholds, reverse connection protection, and a power-off memory function. This product is designed for precise voltage and capacity monitoring across a wide range of battery types. The dual-screen display allows for easy reading of voltage and capacity or temperature, making it user-friendly. With built-in safety features, it ensures reliable operation and protection against common issues like reverse connection and overheating. Ideal for applications, it meets the needs of both casual users and professionals. Color: Black Material: plastic Package Contents: 1*Battery Indicator 1*Red Cable 1*Black Cable 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.