I don't know what else you would expect from a tire pressure/gauge that connects to a compressor. Reading some of the questions (and answers) there seems to be some confusion about how to use this inflator. It only works when connected to the type of porter cable or DeWalt compressor you would normally use with a nail gun or paint sprayer. It features a 1/4" NPT quick connect, which should eliminate any confusion. The head connects to either a Schrader valve or a Presta valve. Simply place the adapter head onto the valve (unscrew the Presta valve a little first). don't forget). Lift the latch, press the button to turn on the very easy to read display and you're done. Don't forget to re-tighten the presta valves. If the pressure is too high there is a relief valve that will the tire deflates. If you need more, squeeze the lever to inflate, release the lever and read the pressure. Add more air if needed or use the release value to deflate some. That's all very easy and this check took much longer than checking/adjusting the air pressure in my four car tires I use it for both my car and bikes.
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