CZC AUTO Automatic Tire Deflator Kit Adjustable (10-30 PSI), 4PCS Screw-On Tire Air Down Tool Tire Deflators Offroad Accessories for Offroad, Jeep & Trucks, 5 Valve Caps & 1 Storage Bag Included

None of these that i've tried have been super accurate. This one varies by about 2-3 PSI but thats not a problem for what I use it for, and thats to deflate the tires on my jeep before off-roading in the sand. These are really easy to use, you just set the PSI you want, I go for 20 and lower the rest of the way to 15 manually, but these getting the tires to 20 make it so much faster. You just set it and screw it on all 4 tires and wait a bit. VS having to sit at each tire and manually let the air, which could take 3-5 mins per tire. All that time really adds up. Good build quality.

Deflated tyres helps vehicles drive off road through soft sand and over sharp rock. Airing down four tyres in succession by alternating off gassing and measuring the remaining pressure until you get them down to where you want them to be takes a lot of time and effort. These make the task much easier. Set the desired pressure, screw it onto the valve stem, pull the plug, and down they go — all four of them at the same time. A solid set of deflators. Recommended.

The media could not be loaded. I’m a little on the fence about these because the core-removal type is faster. But these are convenient and come in a set of 4 so you can get all of the tires going at once. My off roading is typically “easy” (I have a 1 ton diesel), so I’m mainly deflating to around 35-40 psi for ride comfort, slightly better traction , and to go easy on my tires over sharp rocks. But I deflate a lot, so both convenience and speed are important.To operate, just set the psi you want to reach and screw one of these onto each tire valve. Pulls the rod out to make it deflate faster.Pros: good quality; deflate all tires at once; convenient preset inflation levels to choose from; very compact with a nice zippered carry pouch that easily fits in my glove box; spare valve caps (x4); speed for 4 tires might be as fast as with a core removal deflator (and with less “work”); might be safer the core-removal since this is just depressing the schrader valveCons: not as flexible nor as fast (per tire) as core-removal styleSo mostly pros, but I’m going to have to compare these to my existing * deflated wrt speed across multiple tires over multiple outings. I have to say, I really like the compact size and utter simplicity of these.I deducted 1 star because the 30 psi preset returned 36 psi. I didn’t test all 4 units—just 1. 36psi is actually good for me as I typically deflate to the 35-40 range. The preset range on these goes down to 10psi, so you can easily go very low if desired

Pretty simple but useful for off roading.

These make airing down easy. Just set your PSI, attach to your air stem and pop the little plunger up and it'll let out the air to the set PSI. So in theory as you air down one, you're setting up the next one and so on and so on. Come with a nice little bag and some nice little metal stem caps.

No easier way to air down. These are set by twisting the body to the desired PSI, similar to a torque wrench. Then simply thread on the valve stem and pull the plunger. The air flow will stop automatically, when the desired PSI is reached. These included valve stem caps, however I recommend not using them. Aluminum caps will bond to the valve stem.

This deflator kit is a game-changer for off-roading. Easy to use, accurate PSI control, and the included caps and bag are a great bonus. Saves time and protects your tires.