I bought this to replace my pneumatic digital tire inflator that I had for years. I received the tire inflator in its factory packaging (not a shipping box) and the box was damaged. Everything was out of place in the box, like someone just put it there. The supplied batteries were dented and possibly leaking. As far as tire pressure goes, I wasn't impressed with the quality and construction. The body is aluminum and some cheap molded plastic. I can't speak for the performance of the tool. After seeing the box and contents in the condition they were in, I repacked and sent them back. When I see that, I'll just stick with my old instrument.