In my experience, this tire inflator is still working well. I use it for domestic purposes only and never run it for more than 7 minutes at a time. I wouldn't recommend it for commercial use, as it's not suitable for big vehicles. It needs a 12V DC power source, so keep that in mind.
When I connected the machine to the tire, I noticed that it initially showed the current air pressure. After I set it to 33 psi and turn on the machine, the air pressure gradually increases and displays in real time. The air inflator automatically turns off when it reaches 33 psi, but it can also be turned off manually. However, a few seconds after turning the machine off, the display shows 34 or 34.5 psi. I think this slight discrepancy is normal It can be adjusted manually with the machine. I also think the tire pressure displayed while the machine is running is not quite accurate. I am not an expert, just sharing my experience. 😊
