$7 Essential item, no matter what deflator option you choose.
This is one of the most effective ways of airing down and making sure you're at the right tire pressure. Simply press the relief valve button to deflate. It will take a few minutes per tire.
This deflator actually threads onto the valve stem and pulls it out. Honestly, I've never used one myself, but this is very popular in the world of offroading. Only buy if you know what you're doing.
$19 Budget friendly
Automatic deflators. Fully adjustable. 6 - 30 psi pressure range. Lifetime Warranty. Comes in a case with custom made holes
$76 trusted brand
-STANDARD DUTY MODEL deflates tires to anywhere between 6 and 30 PSI, factory preset to 18 PSI.
-SAVE TIME with fully automatic tire deflation for a quick and carefree experience.
-PRECISION MADE in Australia.
My personal choice is using the EZ Tire deflators to start airing down my 4 tires. They get within 1-2 PSI of my target. I then use my Slime pressure gauge (with relief valve) to fine tune my air down.