Tire & Wheel Tools

I agree with the other reviewers who said this product needs an o-ring. I found it very difficult to get it to seal on the tire valve stem, but with the o-ring it works perfectly. (Why they don't manufacture it that way I don't know). But by getting an inexpensive o-ring from Ace Hardware you have a product that is outstanding. Another reviewer said the size o-ring he bought was 1/4 x 1/8 x 1/16. However I found this size was too small and didn't fit. I had to get 5/16 x 3/16 x 1/16, and it's a perfect fit. And with tax it cost me a mere .18 cents. An easy modification well worth it.

The Accutire "Setpoint Tire Gauge," model MS-4350B from "MSI Sensors" (aka "MS-4350: Digital Set Point Programmable..." from "Measurement Specialties"), UPC 1550710566, has seven nice features. First, it's easy to hold. The bottom of the larger-than-usual body is rubberized, and the shape allows you to firmly press it onto a tire valve stem with a thumb. Second, there is an LED light activated by a big round button on the back. Third, the screen is backlit and the numbers are large. Fourth, there is no need to turn it on/off. Instead, you can push the nozzle onto the valve, and it displays the measurement; about 15 seconds later, it turns itself off. Fifth, it beeps when an accurate reading is taken. Sixth, the two CR2032 lithium batteries will presumably last a long time, and can be replaced if they wear out. Finally, if you keep forgetting how much air is needed, you can program separate front & rear target pressures.

UNFORTUNATELY, it's hard to obtain a solid... Read more

I bought an O-ring at Ace Hardware [stk no.35774B] and this ring fits perfectly into the inside of the sensor. Around the hole which makes contact with the metal tire stem. Walla ! the leak problem has stopped and one gets a very tight fit onto the stem curing the problem.

The exact size of the this rubber O-ring 1/4 x 1/8 x 1/16. [#60 O-ring]

at Ace Hardware. So one does not even need to cut or glue this thing to make it work. Give it a try! Cure the problem for sure. The part cost me

.74 cents.