Adjustable Auto-Stop Tire Deflator Valve Kit, 10-30 PSI Air Down Tool Offroad Accessories, 4 PCS

It works great. I use that the four-wheel-drive beach no problem.

Would rate this a 10 star if I could! Used this less than 24 hours after buying it and I'm already loving them after just one use. The product feels like very high quality materials and they are very self explanatory, slight user error for first time use resulted in 1/2 psi off from my target psi but again that was just due to user error.. Absolutely love these and would highly recommend to anyone needing a way to air down! Would buy again!

They work,,,accurate within 3 psi. Easy to use!

All four stopped releasing air at the set pressure on the valve the first time. I’ve used these 20+ times to air down with consistent pressures.

I've use these several times now. The numbers may be off a psi or two. But does the job as it should. What used to take me 30+ minutes. To air down each tier. I'm done in 10 minutes.

So I read through the instructions thinking heck this can’t be too hard to set the system up to set my tire to 15 psi for some over sand adventuring. And then come to find out that all my tires are at 25 psi because the instructions were not written by somebody whose first language is English. This wouldn’t have been a huge deal however one of the devices completely failed to even control temperature causing it to drain all the way down. This was less than ideal since I had a car full of screaming kids who just wanted to go to the beach and not see their dad fool around with off-road gear. So while the kids are screaming, I am sitting trying to pump up all the tires to figure out why this device doesn’t work. Gave up on trying to figure out why it didn’t work and then promptly refilled the tire and went with the old-fashioned pencil gauge to get it set just to where I needed it. Did not save myself anytime find a better way. These are not the tool for you.

I was suspect about the level of quality of these deflators compared to their all metal competitors, but after using them a few times, they work as advertised. I recommend using an air gauge to check the actual pressure while adjusting the deflators to your personal preference. Start out with the deflator adjusted to a little higher than what you want it at in the end and work down to ensure they are all at the desired pressure.

flimsy and off by afew psi. Not horrible but quality seems low at price point. They work for now.