Features: Accurately monitor 12V/24V lithium batteries with this voltages display panel, featuring real time LED readouts for precise battery health tracking in solar systems and power tools. ABS housing withstands outdoor conditions while twin voltages compatibility ensures seamless integration with caravans, marine equipment, and energy storage solution. Ideal for solar technicians, and DIYer enthusiasts requiring reliabled battery indicators monitoring during extended trips or emergencies maintenance scenarios. Optimize power management in dimly lit environments like nighttime construction site or camping setups using its glare resistant LED screen with voltages/charing visibility. Tool less installation enables quick mounting on battery terminals or control panels, making it essential for maintaining uninterrupted power flows in backup generators and electric vehicles. Specifications: Component: ABS plastic Screw Hole Model Size:Approx.34.58x3mm/1.36x0.11inch Without Screw Hole Model Size:Approx.30x3mm/1.18x0.11inch Color:Blue/Red/White/Green Supports 12V and 24V voltages detection Used for small batteries with voltages not exceeding 55v Package Includes: 1pcs Digital Voltages 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.