When you use the programmable pressure shut-off, make sure you toggle up the pressure you want and then wait for the display to show 00...then and only then should you then start-up the pump. If you don't wait for the 00 to display, it will continue to fill beyond what you thought you set it at. As for the inexact final pressure, this is common in every inflator/compressor. You're always going to lose some pressure when you disconnect the air-hose because there's a moment there that the tire valve is open and air is coming out. I always take the pressure up 2 or 3 pounds beyond what my target, final pressure is. Once you disconnect the air-hose, check the tire's pressure again with a separate tire-pressure gauge. You may still be slightly high, at which point you can use the back side of the tire-pressure gauge to depress the tire valve and let some air out to back yourself down into the target pressure.

Either the craftsman or dewalt brands are my go to

I have one and it does the same crap. @ 2:36 you can see its at 37.5 then you hit the down arrow on the unit and that really didnt do anything. If you dont touch anything it will just keep pumping air into the tire. Edit: After messing with it for a while I was able to reset things and finally get it to work but its not exactly an intuitive device. Its cheap and bulky and the cable management is not great.. it does however work.

Great pump I have the same ☝️

You said it’s an air inflator? Didn’t know u could inflate air?

how those it compares with milwaukee

Thank you

It will auto shut off. Let it pump.

Just got this and while airing up truck tire with the 4.0ah battery for about 10 minutes it gave error "E9" then shut off. Any idea what that means? Battery too warm? Book says nothing about codes and is useless.

anyone who has had this for awhile has it held up?

while the pump is on the measurement will not be accurate. the pump is doing its own test to shut it down when its reach the set psi

Mine came with a battery how do I charge it. Do I have to buy a separate charger.

Great help thank you lol

The meter is off by 2 psi in most units. You want 35psi set it on 37. Always have a seperate air checker no matter what brand or unit you have.