MiltonDigital Tire Pressure Gauge S-580ekit, Most Accurate Inflator Gauge Available, Perfect for Professional Technicians, Easy to Read Display, 0-160 PSI Pressure Range (PSI, kPa, Bar, and kg/cm2)​

Works great

I was looking for an extremely accurate air gauge to measure pressure on my motorcycle tire air pressure. I race and changes as little .5 psi make a difference. In addition to being extremely accurate, it also allows me to add or relieve air as needed without changing tools. It is well built and made in the USA.I’ve seen some posts criticizing this tool because the air pressure fluctuates even after adding or removing air. This is not a defect but a sign of the gauges extreme accuracy and precision. When adding or removing air you have many factors affecting pressure, like the differential in air temperature between the air in the tire and the air you’re putting in. As the air temps normalize the pressure will fluctuate slightly, this gauge is so precise you can see it. The humidity of the incoming and the current air in the tire will also normalize. The biggest thing is to let the gauge “settle”. Once it does, you will know the exact air pressure at that moment. Checking it again later and getting a slightly different result is completely normal and again, a reflection of both the accuracy and precision of the measurement.If you are looking for one tool to inflate, deflate, and get the most accurate pressures possible for critical applications I doubt you will find a better tool.

IMHO this is by far the best precision tire gauge/inflator on the market. Longacre is one of the most popular gauges (no inflator function) and it's 2% accuracy. The Moroso Pro gauge is in the ballpark pricewise of this Milton and offers .5% accuracy. The Milton is .05% accuracy, which is insane and a new level of accuracy.Another aspect to consider is that this product works across a range of 0-160 PSI, all of the aforementioned gauges are a subset of this range only, if you wanted to cover 0-160 PSI you'd have to buy multiple of the other gauges. I find this to be a huge advantage because I use it for ATV tires that are filled to 6 PSI up to 110 PSI on a F450.Using common AAA batteries is also a huge bonus as most use lithium coin cells that I never seem to have extras around when I need them. The included whip off the inflator is a nice touch as well, allowing you to use whatever filler tool you want and allowing you to easily swap them. I use another 6' whip with a quick connect that allows me to be more comfortable by standing while I fill the tire (nice when you're filling 35" tires after you've aired down on the trail) and be safer (do you really want your head that close to the tire while filling?). Then, when I fill dually tires, I just pop my whip off and connect a dual head.It's not completely perfect in every way, but it is better than any other I've found and I'd highly recommend it.

So I love the accuracy and large and easy to read display. The build quality is fantastic, except the cheap plastic battery cover and valve cap holder. My complaint is based on my first use at plus 2 Celsius- the display became unreadable by the time I reached the fifth tire on my sprinter dually. I like it so much that I can’t bring myself to return it, but I probably will. Whoever decided to use epaper needs their head examined and they should put a big warning on the box that it won’t work below freezing. I had planned to leave it in my RV and check the tires before each departure, but that idea only works above freezing…..

So overall id buy this over the mac tools air chuck i got it to replace... its lighter, slimmer, takes AAA instead of watch batteries, more accurate, and comes with all the fittings for all tires and a quick release to change them which i found to be awesome, has a little light which I found to be odd but it really helps air up duallys... however it isn't as rugged, has alot more features which can be confusing and can't be used to let air out of tires when not connected to a air compressor which my mac tools one could and it adds air alot slower too... they are about the same price but overall this one is alot better and comes with a 1 yr warranty