【FAST PUMPING TYRE】: Heavy Duty Double cylinder design,maximum pressure 150PSI, air flow 70L/min, inflates standard vehicle tyre in 1.5 minutes (200/70/R16, 0-35psi)【BRIGHT LED LIGHT】: portable 12v air compressor is equipped with bright and long-lasting LED lights, allow easy operation or making quick repairs in the dark and make sure you can be seen in an emergency to avoid any potential dangers.【LCD DIGITAL PRESSURE GAUGE (with Backlight)】:Tyre pump apart from inflating air, the built-in digital air gauge can also check and monitor tyre pressure with large bright LCD backlit digital di . The gauge is preset pressure shut off gauge with four di units: PSI, KPA, , KG/CM²; Measu range: 0-150 PSI with precise accuy of 0.1 PSI.【ADVANCED ACCUY】: Professionally calited to always return a reading within 1% of the pressure of your tyre. No more guessing! Accurately measures and inflates from 0-150 PSI; The final value will be 0.5-1.5 PSI higher than the preset value; When is finished, it perfectly solves the problem of reduced pressure after removing the valve conor, thus making more accurate.【Notice】: Please note that if the inflator does not work, please be sure to use the battery clamp. Because the two-cylinder air pump need more powerful current to work.