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Accutire MS-4021B Standard Digital Tire Gauge

*Est. $10
March 2012
by ConsumerSearch
Accutire MS-4021B Standard Digital Tire Gauge

Best tire gauge

  • Very accurate
  • LED is easy to read and understand
  • Seals tightly
  • Measures from 5 to 150 psi
  • Inexpensive
  • Battery is not replaceable by user
  • Gauge doesn't hold psi reading after it's taken off the valve stem

A good tire gauge must be convenient to use, easy to read and deliver accurate results. The Accutire MS-4021B Standard Digital Tire Gauge fills all these requirements, and it is one of the most recommended tire gauges overall. "This gauge should be in every commuter's glove box," says Car and Driver, calling the MS-4021B "affordable and compact."

Sometimes, spending more buys a better product, but that isn't the case with this gauge. It costs only a few dollars more than the cheap pencil tire gauges experts say you should avoid, and tests by editors at Popular Mechanics show the Accutire MS-4021B to be as accurate as more expensive gauges. One customer at says that this tire gauge is much easier to use than the pencil-style, and another says, "If you just push the gauge straight into the valve stem, you easily get a solid reading without leaking air."

Because of the MS-4021B's wide pressure range (reading from 5 to 150 psi) this gauge is useful for a variety of applications, including bicycle tires, passenger vehicles and heavy-duty trucks. On it has an average rating of 3.9 out of 5 stars, and it is the retailer's  most popular tire gauge. "I've had one of these for years, works well, and lasts long," says one user, summing up what other posts report about the MS-4021B's long, dependable life. There are a few complaints that the batteries last only a few years, and the MS-4021B has to be sent back to the manufacturer for battery replacement -- something that's probably not worth the effort.

The similar Accutire MS-4350B Programmable Digital Tire Gauge (Est. $15) has a smaller overall range, at 5 to 99 psi, but it also lets you store the recommended tire pressure for your front and rear tires, though most users didn't seem to use this feature

Accutire MS-4350B Setpoint Tire Gauge
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Accutire MS-4021B Digital Tire Pressure Gauge

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Our Sources


Users at rate and review hundreds of tire gauges. The Accutire MS-4021B is not only the retailer's best-selling tire gauge overall, it comes highly recommended from pros like Car and Driver and Popular Mechanics magazines, and users, who bestow a 3.9-star overall rating in almost 280 posted reviews.

Review: Accutire MS-4021B Standard Digital Tire Gauge, Contributors to


Editors at test 14 models of tire pressure gauges, comparing accuracy, user-friendliness and durability. The Accutire MS-4021B digital tire gauge is among those evaluated.

Review: Tire Pressure Gauges, Editors of


Popular Mechanics includes the Accutire Digital Pressure Gauge on their list of top car gadgets, praising its accuracy at an affordable price.

Review: 15 Must-Have Car Gadget Gifts, Editors of Popular Mechanics

4. Car and Driver

Car and Driver rates five of the best tire gauges on the market. It recommends the Accutire MS-4021B Standard Digital Tire Gauge for all types of users, noting that it's priced reasonably enough for everyone to keep one in their glove box.

Review: Tire Gauge Comparison: Moroso, Longacre, Intercomp Racing, Joes Racing, Accutire, Jon Yanca, Dec. 2010

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