Done, connected to the compressor, but the ends cannot be attached to the valve stem. Printing is very slow. Squeeze the valve handle without letting air through. I pushed harder and finally got air to inflate the tire. 3 more on the vehicle and 3 on the trailer and it was practice to press the valve to get airflow. Not worth the money. Pay a little more and get a higher quality gauge/inflator. This one isn't worth the money. You just have to return it because this is another piece of junk from this nameless country that produces a huge amount of junk.