ADVANCED TRUEGAUGE SCREEN: This air compressors upgraded tire pressure sensors collect data at a rate of 200 samples per second, ensuring incredibly accurate readings. The valid data rate is more than 80%, which is 60% higher than the market average. Ensure a safe drive wherever you roam. 2X FASTER INFLATION & UNMATCHED PORTABILITY: The tire inflators 150 PSI maximum pressure, coupled with its 17L/min airflow delivers 2X faster inflation, can refill a 195/65R15 tire from 30 to 36 PSI in 1.5 minutes. Weighing only 1.01 pound5.31*2.71*2.04 IN, this bike air pump is easy to carry and store in any limited space, such as car trunks, bike racks, or backpacks. LONG RUNTIME & AUTO-OFF: After fully charging, the built-in 4000mAh large-capacity battery allows the air compressor to refill up to 8 tires (195/65R15) from 30-36PSI. The preset function and auto-off function deliver a hands-free inflation experience. With just one press, the portable tire inflator will easily inflate car tires, motorc