It's a little pricey but these $2 and $3 gauges got just as expensive. The Jaco Gauge will give you a good reading the first time and will hold the reading until you release it. If you're like me, age affects your vision. So the great thing about the Jaco display is that you can take a reading and move the display to a brighter spot and then read it. I like the bleed valve so you can pump it up a pound or two and by keeping the gauge attached to the tire you can easily bleed off a little pressure, as much or as little as you like and get it where you are want him. . These cheap gauges give different readings each time the stick sticks out of the end. As normal people who do a bit of maintenance on our cars, we have no idea of a sensor's accuracy. The quality of a Jaco pressure gauge gives you confidence because it feels like quality. On cars that now have a low pressure light or warning light, I couldn't get it to ring with a cheap pressure gauge. After fine-tuning the pressure with my Jaco, the lights went out and I'm happy camping. Like I said at the beginning it's a bit pricey, but with tires that affect fuel economy and safety, it's worth checking air pressure twice as fast and feeling good after work, which can save you money and life .