4Pcs Alert Monitoring Valve Cap Copper External Valve Detector Tire Preure Monitor Tyre Detection Warning Cap Automobile Parts Feature:1. Portable and Mini:This car tire preure indicator is portable and has a miniature design that makes it easy to carry around in your car. Its compact size also makes it convenient to store without taking up too much space.2. High Accuracy:The tire preure gauge of this indicator provides high accuracy readings, ensuring precise monitoring of your car's tire preure. This helps prevent underinflation or overinflation, leading to safer driving and longer tire life.3. Secure Packaging and Anti-Theft Nut:This alert monitoring valve cap comes in a set of 4 with secure suction card packaging. The upgraded version includes an anti-theft nut and small wrench, providing additional security measures.4. Improved Fuel Efficiency and Extended Tire Life:By maintaining proper tire preure, this external valve detector can improve fuel efficiency and reduce tire friction, resulting in extended tire life and cost savings for car owners.5. Multifunctional Display:The display of this tire detection alert cap is easy to read and multifunctional, displaying the tire preure in three levels of safety: Safe (2.2-2.4 bar), Warning (10% below standard, 1.9-2.1 bar), and Danger (25% below standard, below 1.8 bar). This allows drivers to quickly identify any potential iues and take corrective action. Specification:Origin: Mainland ChinaModel Number: Car Tire Preure IndicatorMaterial: CopperPreure display range: 8-48 2.4ba (psi)Product size: 2.2 x 1cm/0.9 x 0.4inchGro weight: 50gSpecification: 4PCSStyle: Anti-theft modelProduct role: can be used to detect tyre preureApplicable models: Universal Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement. 4pcs x Tire Preure Cap4pcs xAnti-Theft Screws1 x Wrench Motor Vehicle Wheel Parts Vehicle Wheel Parts