This tool makes measuring tire pressure and adding air much easier than standard connections. I wasn't able to get a good compound and couldn't add air to a tire on my machine with the old compound and gave up after 30 minutes and I'm pretty sure I deflated enough that I worried that the tire would deflate completely. With this tire inflator and pressure gauge I did it in less than a minute. I also checked and corrected the tire pressures of two other vehicles in just a few minutes. No more trying to get a good connection by toggling back and forth between a tire gauge and an air compressor. Just plug it in, instantly measure the pressure, add air, done. I can highly recommend this remedy.