Bests & Worsts Reviews from Amazon

I investigated a number of similar products on Amazon, other web merchants and on the Manufacturer's websites. As a result I decided I was seeking a couple specific things. My Desires o Low Cost o Screw on Valve Attachment. My rims don't leave enough room for the larger sleeve that surrounds the clip-on type hose attachments found on many pumps. o Automatic Shutoff. I've got better things to do that watch a needle move. Pros + Inexpensive. Disregarding a few slightly less expensive generic no-name products with poor reviews, the products I found that had the features I wanted were often two times the price or more. + Screw on Valve Attachment. This takes less room and so will be compatible with a greater variety of tire rims. + Digital Pressure Gauge. An LCD display shows the current pressure in PSI of your tire. It seems sufficiently accurate, reading always within 2 PSI of a fairly decent quality manual gauge that I have. + Automatic Shutoff. Set the desired tire pressure, activate the device and it will shut off when that target is hit so that you don't have to baby the device while it huffs and puffs your tires up. Cons - Loud. I use this in my closed garage. It seems as loud as when I use my power miter saw to cut 2x4 lumber. It seems that this is simply a light device with a basic light plastic case so it vibrates and wiggles and dances on the floor as it does its job. But the job gets done. - Not fast. But fast enough for most. Expect to spend 2-4 minutes per tire depending on how fast your are connecting and disconnecting and how low your tires are. I spend about a minute per tire at the gas station pump. Tips ! Don't inflate your car tires to the pressure listed on the side wall of the tire itself. The proper inflation pressure is listed on your car's door panel. Open your driver side door and you will find a sticker/plate on the part of the door jam that is covered when the door is closed. This will tell you the correct tire pressure for your car. It will always be lower than what you find on the tire and if you inflate to the tire's maximum you may wind up with a harsh bumpy ride and decreased traction. ! If your are inflating your tires while cold (not having driven for 10 or more minutes) then you should inflate to the listed pressure. If your are inflating warm tires the pressure will read higher, commonly 3-4 PSI higher than when cold. So, if you just finished driving add 3-4 PSI to your target pressure. For example, if your car lists a rear tire pressure of 32 PSI, inflate them to 35-36 PSI when warm.