Features: The battery level indicator tester features a low voltage alarm function, alerting users, ensuring recharging. This tester boasts a wide voltage measurement ranges of DC7-55v and supports various battery types, all displayed on a clear LED screen. Ideal for electronics engineers, DIY enthusiasts, and automotive technicians, this device is essential for anyone needing precise monitoring of battery capacity and voltage. Perfect for use in automotive circuits, electric vehicles, solar systems, it provide reliable performances across diverse applications. With its abs construction and easy installation, the capacity voltage meter ensures long lastingly utility, making it indispensable tool for maintaining optimally battery health. Specifications: Component:ABS Size: Approx.46x15x3mm/1.81x0.59x0.12inch Color:Red/Blueness/White/Green Red: 7-40V Package Includes: 1pcs LED Display Voltage Meter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.