epauto 12v dc portable air compressor pump, digital tire inflator epauto <p><b>important information before your purchase</b></p> <b> do not suppot lt, ht and truck tires.</b><br> <b> it is for 12 volt dc only.</b><br> <b> do not suppot 24 volt.</b><br> <br> <p><b>specification:</b></p> working voltage: dc12v <br> rating power: 120w <br> inflating speed: 1.06 cfm <br> min. amp: 10 amps <br> maximum amp: 15 amps <br> led flashlight: bright torch <br> maximum working pressure 100 psi <br> display units: kpa, psi, bar, kg/cm <br> the power cable is with a 15 amps fuse, and there is a backup fuse in the package. <br> overheat protector will shut of the unit when it exceeds 167°f <br> ce certified <br> <p><b>operating instructions:</b></p> 1. make sure the power switch is at off position and the vehicle engine is running. <br> 2. remove the dust cap from the tire valve, and then attach the air chuck to the tire valve stem, and screw onto tire’s valve stem. <br> 3. plug the power cord into a 12v cigarette lighter socket. <br> 4. press (m) button to choose the display unit. (4 units available: psi, kpa, bar, kg/cm). press (-) or (+) button to set the desired pressure, and then wait until it stops flashing. <br> 5. turn on the power switch. the compressor will automatically stop inflating once the desired pressure is reached. <br> 6. when the desired pressure is reached, turn off the power. <br> 7. unscrew the valve connector, place the tire valve dust cap back to the tire & disconnect the power cord from a 12v cigarette lighter socket.