This pump does the job! It's small enough to be easily carried in one hand, not that heavy (2-3 pounds?), and after plugging the 10-foot power cord into your car's "community" outlet (aka cigarette lighter) plugged in, it has a flashing warning light. for oncoming traffic. Operation is simple: unscrew the valve, set the target pressure, turn the pump on and wait for it to turn off when the desired pressure is reached. I've found that the pump seems to pump 1-2lbs over the set value, but since it takes a few seconds to deflate it doesn't matter.