Features: This tire pressure monitor cap features a three color warning systems (green for normal, yellow for low, red for danger) for instantly visual tire pressure checks without tools, solving traditional gauge hassles. Built with a corrosions resistant copper cores for long term accuracy, it withstands high temperatures and pressures, and its miniature design fits most valves stems on cars, SUVs, and motorcycles without adapters. Ideal for daily commuters, motorcycle enthusiasts, and SUV owners who need quick, reliably tire pressure monitoring, especially for long term outdoor parking. Perfect for routine auto inspections in diverse climates, from freezing -20°C to hot 80°C, ensuring dependable use in regions like Southeast Asia and South America. Enhanced with a theft resistant locking mechanism to prevent loss during high speed travel, this plastic and copper combo offer UV resistance for sustained outdoor reliability. Specifications: Component:Plastic+Copper Size:As Picture Shown Styles:A/B/C/D/E Car tire pressure cap, tire pressure warning cap, monitoring detection cap, suitable for most valves models, can be installed on cars/SUVs/motorcycles. none additional conversion connectors are needed, solving the pain points of multi-model compatibility. Package Includes: 1 Set Tire Pressure Monitoring Cap 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.