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Accutire MS-4021B Digital Tire Pressure Gauge

4.5 out of 5 stars 2,504 customer reviews
| 54 answered questions

List Price: $19.99
Price: $11.07 & FREE Shipping on orders over $35. Details
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1 Pack
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  • Heavy duty construction and rugged design for long lasting use
  • Angled head and rubber coated handle for easy gripping
  • Large, easy-to-read LCD display
  • Equipped with an automatic shut off to prevent deflation
  • Accurate to within 0.05 PSI, reading air pressure from 5-150 PSI in 0.5 pound increments
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$11.07 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com.

Frequently Bought Together

  • Accutire MS-4021B Digital Tire Pressure Gauge
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Total price: $47.91
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Product Information

Size:1 Pack

Technical Details

Brand Accutire
Item Weight 0.8 ounces
Product Dimensions 6.7 x 2.4 x 0.8 inches
Origin China
Item model number MS-4021B
Manufacturer Part Number 4021B

Technical Specification

Additional Information

ASIN B00080QHMM
Customer Reviews
4.5 out of 5 stars 2,504 customer reviews

4.5 out of 5 stars
Best Sellers Rank #27 in Automotive (See top 100)
#1 in Automotive > Tools & Equipment > Tire & Wheel Tools > Digital Tire Pressure Gauges
#2 in Automotive > Tools & Equipment > Tire & Wheel Tools > Tire Gauges
#2 in Automotive > Tools & Equipment > Tire & Wheel Tools > Tire Repair Tools
Shipping Weight 0.8 ounces (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available March 14, 2005

Warranty & Support

Warranty, Parts:Parts

Product Description

Size: 1 Pack

The Accutire MS-4021B digital tire pressure gauge features a large, easy to read LCD display that provides pressure readings from 5-150 PSI in 0.5-pound increments. It is ergonomically designed with an angled head and a rubber coated easy-grip handle. The heavy-duty construction will easily withstand shifting around in your glove compartment or toolbox. If you forget to turn the gauge off, don't worry, it is equipped with an automatic shut off system.

From the Manufacturer

Customer Reviews

Top Customer Reviews

Size: 1 Pack
Please ignore the other two users that gave this gauge only one star because it only read 28.5 psi. I find it amusing, but sad, that they didn't realize that there was a protective sticker on the screen that read 28.5. If you peel off that protective sticker, then you get a nice, bright red backlit number displaying your true tire pressure. This gauge works great! The display is amazingly easy to read, and it is also simple to get a good reading.

Prior to owning this Accutire model, I had a 7 year old Accutire digital gauge that finally broke. WIth that old model, it was much harder to get a reading without air leaking out. With this new model, if you just push the gauge straight into the valve stem, you easily get a solid reading without leaking air. The old model's display wasn't backlit either, and I was truly impressed with the large, bright numbers on this new model. I'd highly recommend getting this gauge, as it has all the functionality you need, at a very reasonable price. I like having accuracy to 0.5 psi, and I never use non-digital gauges unless I have no other choice. I also tested this gauge with back-to-back measurements, and it was accurate every time. You won't regret this purchase...
33 Comments 987 of 1,032 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 Pack Verified Purchase
This is by far the best tire gauge I've ever had. It lights brightly, easy to see even in sun and always visible at night. Accuracy is high, construction quality is excellent. Highly recommended!
2 Comments 191 of 202 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 Pack Verified Purchase
I bought two of these gauges, one for my air compressor accessory kit and one for my daughter's car. Calibration is extremely easy and the readings are in 0.5 psi increments. No more moving parts and messed up readings. There's no gasket on the stem where it touches the tire valve but that didn't seem to be a drawback at all. You don't even have to wait for the last reading to clear before taking another. Nothing fancy, just practical and handy.
1 Comment 58 of 62 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 Pack Verified Purchase
While this product works fine, and is accurate, it uses (3) A76 watch batteries. That's a lot of batteries. and the batteries generally only last about 6 months. I have to pay $2 ea for the batteries. Total $6 each time. That's $12 a year. and the unit only cost $8.
Maybe a unit that uses lithium or other long-lasting batteries would be better.
Next time, i think i will try one of the better, more-expensive units.
37 Comments 459 of 531 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 Pack
...try peeling the protective plastic film off the LCD display. The film is imprinted with a "28.5" to simulate the gauge's display so it looks more attractive when it's on the rack at the store.
5 Comments 153 of 175 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 Pack Verified Purchase
I found the tire gauge readings to be accurate, and initially this meter was easy to use and quick to take a measurement.

However, within 5 months, the plastic part of the gauge that you put onto your tire had deformed to the point that it would no longer take a reading from a tire. I do not work at a mechanical shop, and I have one car and I had taken a reading about once a week for 4-5 months.

I would not recommend this product.
Comment 150 of 175 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 Pack
we bought this at canadian tire and within a year or so the tire gauge split lengthwise along the seam - making it useless - as the air just leaks out the side and doesn't measure the pressure... i give it one star for lack of durability (its not like we use it daily... so maybe 10 uses?)
Comment 52 of 58 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 Pack
I purchased this gauge for a bike tire that needs 55 psi, and I thought this would work well because it is digital and has a relatively high psi limit. Turns out that it only works if you get the gauge at just the right angle. Any deviation from this angle and you lose ~10-15 psi per attempt at measuring pressure. This can be frustrating if you are using a hand pump to fill up your tires and must repeatedly replace the lost pressure by pumping again. I have not had any problems measuring the pressure of my car tires, however, which salvages a 4th star for this gauge, rather than 3. Though I think my true rating for this gauge is 3.5 stars...
1 Comment 50 of 56 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Accutire MS-4021B Digital Tire Pressure Gauge
This item: Accutire MS-4021B Digital Tire Pressure Gauge
Price: $11.07
Ships from and sold by Amazon.com