ALL-TOP Adjustable Auto-Stop Tire Deflator Valve Kit (10-30 PSI) 4 PCS Screw-on Tyre Air Down Tool for Offroad 4x4 (with 5 Valve caps)

gr8

Better than all the other products!

Really nice helps in efficiency and accuracy of psi and time consuming

Setting at lesser PSI is bit tricky but does the job

Pure waste of money! Does not work properly even after setting them accurately as per instructions. Error is very large. They will even completely deflate the tire.

Works well

I had some difficulty to find the correct adjustment for my desired psi. Once i found the PSI i want to use, it is very comfy to deflate. When deflating i can enjoy socializing with my friends. However if you want 10PSI, it is kind of hard.

Looked forward to using these but was let down. I was aware beforehand that these might not be so accurate +/- 2 PSI according to other reviewers. I carefully dialed all four deflators to 15 PSI which resulted in all four tires being at vastly different pressures (with one deflating down to 9 PSI). The build quality is alright. I can probably get by if I play around and fine-tune them to find out just how much each setting actually deflates which somewhat defeats the purpose of having these in the first place.

安価な商品なので正確な空気圧の設定は出来ませんでした。 何度か試してみて希望の空気圧手前で大凡で設定、その後はエアゲージなどで手動で空気圧を合わせるなどすれば便利に使えます。 私はオフロード走行時に毎回使用してます。

These ALL-TOP deflators have a nice heft to them and feel very solid and well made. The PSI/Bar markings are clear and easy to read. There is room for some variation (1-2psi) because of the way they adjust. But honestly, when I air down to 25 or 20 or 15 I'm more interested in softer tires for better grip and less potential for damage then I am for precise PSI. And they're fast! From start to finish (including removing and reinstalling valve stem caps) I aired down all four LT315/70/17 tires on my Bronco from 38PSI to 25PSI in less than 6 minutes with no squatting or kneeling on the ground or fiddling with things. I'm very happy with my ALL-TOP deflators.

Good quality. I like em.

A cost effective solution that takes most of the guess work out of airing down. Well built product that does what is intended to do and if not mistreated, will last long. They are not 100% accurate; may be off by 1-3 psi or so but just need to do your own “mini calibration” on the first go around and you’ll be happy.

What an amazing addition to my off-road gear. Exactly as described and when set properly they are accurate within 1 psi. Easy and convenient to operate. I’ve had expensive deflators and these are comparable. Would purchase again.