Bought an Astroal digital tire inflator based on the good reviews and this type of inflator saves time. After connecting to the air supply, the air flowed through it as if there was a hole in it. After inspection I noticed in the picture that the part where you connect the tire was completely open. There was no way to use it because it just leaked badly. I have contacted Astroal 3 times already, once they asked for a photo which I sent. They refuse to replace what appears to be just a brass head connected to your tire. The device arrived dead on arrival and can't even get a response. Updated 02/22/19. I received an email and they wanted to fix everything. I got a chance to try it yesterday after a few months and I'm very happy with the result. It's easy to use and read. I've tried it from my car tires to high pressure bike tires which I like at 102-105 lbs. I found it right on all levels. I would recommend and the quality of the stitching should be high. The tire valve is made of solid brass and has a good grip on the tire for hands-free use. I'm updating to 4 stars because this item took over 3 months to ship. Since they found the bug I've had good feedback and attention from CS.