Description: Aluminum components prevent rust and corrosion; Tire pressure pen, designed to create an excellent seal around the valve stem of a tire. Tire pressure pen, measures PSI, kPa, BAR; Measuring range of 50-350KPA 5-50 PSI. Attention! Do not exceed the pressure gauge's maximum pressure or you will permanently damage the unit. Convenient design stores easily in a glove box, tool belt, workbench, or even a pocket; the pocket clip makes it easy to carry with you while on the job. Battery-free means no maintenance and total reliability in all weather conditions; a necessary tool for road trips and optimal safety. Features: Type: tire pressure gauge pen Material: aluminum, polypropylene Measurement Range: 5-50PSI Features: Portable, easy to use and automatic tool Size: 14cm / 5.51inch (approx) Notice: Due to the different light and screen settings, the colors of the actual items may be slightly different from the pictures. Due to the difference in manual measurement, please allow 1-2cm size difference. Listing: 1 * Tire Pressure Pen Lightweight and Portable The tire pressure pen is lightweight and portable, easy to use tire pressure test pen, automatic tool, pocket clip design for easy storage. Strong ReliabilityThis pencil tire pressure gauge has been calibrated to international accuracy standard ANSI B40.1 class B (2%) for high reliability, so you can get accurate, precise pressure readings every time you use it. Easy to Use Unscrew the cap from the valve, press the mechanical tire gauge chuck onto the valve, then the dial will slide out and you can read the tire pressure on the dial. After use, screw the valve cap back on and push the dial back. Aluminum materialThe car tire pressure tester pen is made of high quality aluminum, which is strong and durable, not easy to break or fade, rust and corrosion resistant, and can serve you for a long time. Save Money Improperly inflated tires will become less "round" and require more energy to start moving and maintain speed. Additionally, under-inflated tires can cause pollution and increase the cost of oil. So tire pressure test pens can save you money