Tire Pressure Gauges: I don't have to tell you how important tire pressure is for safe driving. This tire pressure gauge saves you the trouble of driving to the gas station. With a resolution of 0.1 on a scale of 0-100 PSI, you can quickly and accurately check your tire pressure and maintain your car yourself at a low cost. Highly Accurate Measuring Instrument: This handy tire pressure gauge has a pure copper metal movement, without batteries. There is no risk of the digital tire pressure gauge's battery running out and affecting the measurement, and you don't have to wait by the car for a long time. The accurate reading is given within 3 seconds. Instructions for Use: Press the bleed valve on the car tire pressure gauge to set the needle to zero; screw the brass end of the gauge into the valve and tighten the device to display the pressure. No further unnecessary action is required. (The red outer ring represents PSI, the black inner ring represents KG/CM2, which we call 2.2 or 2.5, refers to the black number on the inner ring.) Durable: The air gauge is made of durable, sturdy metal hanger, which is more durable and durable than ABS, and is covered with an anti-vibration rubber sleeve, which is scratch-resistant and comfortable to the touch. The pure brass construction of the valve stem has a built-in anti-leak seal, and the details make this a masterpiece. Universal Vehicle Equipment: The car tire pressure gauge has a flexible hose, making it easy to read the pressure regardless of the angle of the valve stem on the tire. Suitable for all tire sizes of most construction vehicles, large trucks, SUVs, cars, motorcycles, etc. This is the perfect solution.