Post Date
February,
26
2018
One of the first accessories I bought for off-roading were my tire deflators. They were the J.T. Brooks Automatic Tire Deflators. They come in a set of four, and make for a quick, easy airing down. However, there are quite a few steps to calibrate the deflators to your desired PSI. Okay not really, but it requires deflating your tire.
This accessory has been an awesome addition to my off road gear. But now J.T. Brooks has come out with a new set called Automatic Tire Deflator Pros. They are so much more simple to callibrate, basically you dial in your desired PSI and go.
If I don't like it I can always go back to 18. However, I really didn't want to have to calibrate them twice. Yeah you can call me spoiled. So I decided to get the Pro version.
Depending on where you get them the Pro version are about $30 more. They are so worth the extra money. They are super easy to set. Loosen the lock ring (nut) until you see the PSI Scale. 
Then you turn the adjustment knob or body until your desired PSI lines up with the top of the body.
Then tighten the lock ring carefully. You don't want to turn the adjustment knob.
This is an approximate PSI. You will want to test them out to verify your PSI. I suggest you do this before you hit the trails. That's precisely what I did in the video below. Thankfully I tested them out, because I adjusted mine all wrong. They ended up being set to zero. I set the PSI to the top of the lock ring not the top of the body. I should of read the directions. Lesson learned, read the directions carefully.
I didn't the first time and dialed them into the wrong place.
These are super easy to set (if you read the directions). And super easy to use. Plus you can see how close I was to 15 PSI in the video below. Well worth the $99 for the set of Pros.
Now what to do with my original set.
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