General description The PULITUO Tire Inflator is a portable air compressor designed for convenience and efficiency. With a maximum pressure of 150 PSI, it features a smart preset function and an automatic shutoff feature to ensure your tires are inflated to the correct pressure without over-inflation. Technical specifications Maximum Pressure: 150 PSI Accuracy: ±1.5 psi Power Supply: DC 12V Usage Connect the inflator to the tire valve securely. Use the "R" button to select your desired pressure unit. Set the desired pressure using the "+" or "-" buttons. The inflator will automatically shut off once the preset pressure is reached.