Description: LCD screen display for easy reading. Used to monitor the tyre pressure， extending tire life and ensuring safety. Introduction:1. High-end digital chip， LED display monitor， testing more accurate， more reliable and cost-effective.2. lighting:It is powered by two AAA batteries (not include) and controlled by “Light”.3. Emergency hammer: Good handle design.In unexpected circumstances， it can smash the car windows， cut seat belts to help drivers successfully escape. 4. Seat belt cutter: cutting off the seat belt to help drivers escape in an emergency. Please note that It is not used for other purposes.5. Three units available : PSI， BAR， KPA.6. Replaceable button battery.7. Streamlined design， more attractive.