Adjustable Tire Deflator Auto-Stop (10-40 PSI) Offroad Accessories Valve Stem kit 4x4 Tyre Air Down Tool for Truck, Pickup, Motorcycle,Jeep etc. (Orange)

Makes doing PDIs at my dealership much faster, I can set these up and door roof rails at the same time.

These things are awesome. Got em for the bf and he uses em all the time

Works as advertised. Relatively accurate for airing down tires.

I’ll preface this by saying that I bought these deflators to streamline part of my job - I process new cars at my dealership, and part of that is deflating tires to the specified pressure per car. These cars arrive with 45-60psi in the tires. Most of these types of deflators max out at 30psi, but the Dornatas max showing 40psi make them ideal. Almost all of the cars I do need tires set to 36psi, 35psi, 34psi, or 29psi - so my intention was to use the set of 4 individually, preset to these pressures. I can then get one tire going, work on another task, switch the deflator to the next tire, so on.But in my few days of using these, I’ve found that I can get 1 to 2 tires done before the cooling effect of the air decompressing through the deflator has raised its valve-closing pressure above what I have it set to. Last week, they worked pretty well, only minor adjustments on the last tire or two per car when checking with a gauge. Today, it’s around freezing outside and wheels/tires/air in them is cold - I can get 1 tire done and by the next, my 36psi-set deflator gives up at 45psi or won’t open at all, and needs to be warmed up before it functions correctly again. Once warm, it’s pretty accurate!Maybe these will work right in higher temperatures, but they’re not ideal for repeated use in cold conditions. Unfortunate!

Work great use this to set pressures in new cars at work that come around 50+ psi. Put them on and do other things till they are done. No complaints.

Works but a pain to set all 4 the same

Worked well on my recent off road trip (my 1st air down ever!). In fact, old timers on same group were impressed with this one.

Great little tool! Big time saver!