Features: Monitor battery voltages effortlessly with this DC8V-30V USB C/A LED display, featuring wide compatibility for libatteries, and real time charging statuses icons. High visibility LED screen ensures accurate voltages readings in sunlight, while double USB ports (Type C & A) and splash proof silicone cover enhanceS durability across 8-30V power systems. Ideal for vehicle owners, marine enthusiasts, and outdoor adventurers requiring reliability battery monitoring in motorcycles, boats, or solar powered setups. Perfect for automotive dashboards, marine battery compartments, or power stations where instantly voltages tracking and device charging capabilities matter most. Compact ABS housing integrates a precise PCB for seamless installation, combining ruggeds weather resistance with intuitively operate across diverse 12V/24V electrical systems. Specifications: Component: ABS, PCB Size:Approx.47.6x19.4x28.7mm/1.87x0.76x1.13inch voltages measurement ranges: DC8~30V Display color: Red Blue White 6Option Type; Port: USB C and USB A ports Applicable Batteries: Common battery and lithium batteries Applicable scenario:car Package Includes: 1pc voltages Monitor note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.