[Fast Inflation with Auto Off Function]: The portable tire inflator provides a maximum pressure of 150 PSI and airflow of 30L/Min, which needs only 5mins to completely inflate the car tire (0-36PSI) 195/55/R15 or 1min to refill the car tire in daily situations(25-36PSI). This smart portable air compressor can preset and monitor tire pressure, automatically shut off when desired pressure is reached, providing a safe and reliable use guarantee. [Safe to inflate Continuously, Save Your Time]: Built in fan, made of high-quality aluminum alloy material and double rows of side cooling holes, the car tire inflator dissipates heat faster. Unlike other tire pumps, this powerful air pump for car tiresis quite safe and efficient to work continuously for up to 30mins without cooling off, which really saves time [4+N Smart Modes, More inflating Options]: The Digital tire pump for car tires has a large LCD digital screen with 4 pressure measurement units-PSI, KPA, BAR, KG/CM, which can be used as a real-time pressure gauge. 4 types of preset inflation modes (bicycle,motorcycle, car, and ball) are considerate for beginners to choose. The manual mode allows you to set the pressure value (3-150psi) according to the inflation object, easy to operate and meet your various inflation needs. [3 Modes LED light, Convenient to Use]: Featuring 3 lighting modes (White Light & 2 Red Flash light modes), the cordless tire inflator with pressure gauge is perfect for roadside emergency and nighttime use. The SOS mode gives out a red flash, visiblefrom 100 meters away in the dark, giving an alarm to passing vehicles to ensure safety. The light can last for 86 hours when fully charged.