Accutire Digital Tire Pressure Gauge (5-150 psi) psi/bar/kPa/kg-cm2 (Black) | Backlit LCD Display, +/-0.5 psi Accuracy, Auto Shut-Off, Rubber Ergonomic Grip, 4 Valve Caps, Batteries Included, MS-4021B
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Availability:
In Stock.
Arrives
Saturday, Sep 5
Size: 1-Pack
Color: Black
Features
- Heavy duty construction and rugged design for long lasting use
- Angled head and rubber coated handle for easy gripping
- Large, easy-to-read backlit LCD display; Easily switch between psi, bar, kPa, kg/cm2
- Equipped with an automatic shut off to conserve battery life
- Accurate to within 0.5 PSI, reading air pressure from 5-150 PSI in 0.5 pound increments; Includes replaceable Alkaline LR44 1.5V coin cell batteries
Brand: Accutire
Material: Acrylonitrile Butadiene Styrene (ABS), Rubber
Item dimensions L x W x H: 6.7 x 2.4 x 0.8 inches
Item Weight: 22.68 g
Number of Items: 1
Brand Name: Accutire
Number of Items: 1
Unit Count: 1 Count
Part Number: 4021B
Warranty Description: 5 years parts and labor
UPC: 703546962442 015507108562 658551455895 708315660253 600740190643
Global Trade Identification Number: 62
Manufacturer: Accutire
Item Part Number: MS4021B
Model: MS-4021B
Material Type: Acrylonitrile Butadiene Styrene (ABS), Rubber
Thread Style: Cr2032
Item Dimensions: 6.7 x 2.4 x 0.8 inches
Item Weight: 22.68 g
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Sep 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 1-Pack
Color: Black
Easy to use and very accurate.
Reviewed in the United States on August 8, 2026 by Kindle Customer
Size: 1-Pack
Color: Black
Great product. Easy to use, easy to read. Finally, a tire pressure gauge that I can like.
Reviewed in the United States on August 3, 2026 by Amazon Customer
Size: 1-Pack
Color: Black
Surprisingly easy to use and accurate. Certainly far superior to a mechanical gauge.
Reviewed in the United States on June 26, 2026 by Phil
Size: 1-Pack
Color: Black
No complaints here, seems to be good quality! Material is a bit cheap but for the price it's too new expected, but already it works well
Reviewed in the United States on July 18, 2026 by kenneth
Size: 1-Pack
Color: Black
My old gauge finally failed, and I bought this one because of its ease of use and reported accuracy.
Reviewed in the United States on July 27, 2026 by theKing
Size: 1-Pack
Color: Black
This works great! Easy to use.
Reviewed in the United States on July 1, 2026 by Daisymandi
Size: 1-Pack
Color: Black
Tire pressure gauges are about as unsexy a product as you can think of, but this one comes across as a top-notch example of industrial design. Its appearance is just as attractive when it’s in your hand as it is in its Amazon page photos. And in the best form-follows-function Bauhaus tradition, it invites you to hold it in a way that makes testing your tire pressures a simple, one-touch operation. Unlike some mechanical gauges I’ve had in the past, it’s easy to get a reliable reading with this digital gauge on the first try. Simply remove your tire’s valve cover, push the gauge's start button, then firmly press the sensor straight ahead onto the valve. (Don’t come at it from an angle.) In a fraction of a second it will get a reading and not let additional air escape. That reading will be to the nearest tenth of a pound. I believe its accuracy is to two tenths, and that’s plenty accurate enough. Going digital is such a nice change from mechanical sensors, which from my experience anyway would start the valve hissing with escaped air when trying to get a solid fit, and then hiss some more when removing the sensor. And mechanical gauges, even the fancy brass one I used to own, are notoriously unreliable. This little beauty is featherweight and doesn’t get dirty when you check your tire pressures, so it can live in your glove compartment. If you forget to turn it off, it will turn itself off after 15 seconds. The battery should last a year. And for the quality you get, the price is a bargain. If over time my experience with this product causes me to re-evaluate it, I’ll update this review. But so far so good! And one more tip: Go to Big O or another tire specialist and pay the $10 or so they charge to fill your tires to their recommended pressures (see the sticker inside the driver's door) using nitrogen gas. Unlike regular air, which tends to “bleed” from the tire over time, the nitrogen will stay put. Racing teams have known this for years and always use nitrogen. And now it’s available to you and me. My nitrogen filled tires have gone a year without losing more than a pound of pressure!
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Reviewed in the United States on September 6, 2018 by John Techwriter
Size: 1-Pack
Color: Black
Tire pressure gauges can run from the simple pencil types to the more sophisticated versions with dial or digital displays. Picking a good one depends on your personal needs, more than anything. Bought this Accutire MS-4021B Digital Tire Pressure Gauge when it was on a Lightning Deal and based on personal experience with an older model from the same company. My needs were specific: measuring the tire pressure on a mountain bike. This review wouldn't even be here had I not lost the original gauge by leaving it in my back pocket when going out on a quick ride that became extended. ◆ Likes: + Clear LCD display; easy to read in varying conditions + Good tire pressure range; from 5-150psi in ½-pound increments + Well designed; angled head makes it easy to use + Uses three LR44/A76 batteries; readily available ◆ Dislikes: - The three LR44/A76 button cell batteries are tricky to replace ◆ In Use: This digital tire pressure gauge is quite straightforward, and the directions for use and warranty info are printed on the back of the package. Before using it for the first time, it's necessary to pull out the small white paper tab from the rear of the handle and it will work just fine. To use the gauge, simply push the nozzle onto the tire valve stem and press down smoothly so that you don't hear air hissing, then hold it there until you see the pressure reading lock in on the digital display. The directions also include directions for checking the "zero setting," so be sure to remove the cardboard portion and keep it for future reference. My MTB tires are 26 x 1.95-inch, and on the sidewall the pressure range is noted as 30-65psi. I changed the air pressure a few times to see how well the gauge would respond, and it worked properly. I then checked it against my Planet Bike Analog Bicycle Dial Tire Gauge, which is very accurate and rated at 0-140psi, and the one that is used in the field. The two were very close, though the Accutire MS-4021B is a bit handier to use at a glance due to its digital readout. My only issue with this Accutire gauge is that the three button cell batteries are tricky to remove and replace. You'll need a small Philips jewelers screwdriver to remove the battery cover on the black handle, and you'll need to use care in prying out the small batteries or they will go flying... as happened to me the first time. When I reinserted the batteries, I cut a small, very thin piece of plastic and slipped it underneath the batteries so that they could be removed easier the next time. A small piece of tape would do just as well, but it a small nuisance. ◆ Summary: The Accutire MS-4021B Digital Tire Pressure Gauge is a decent product, and one that is easy to use. Bottom line is that it's a good multipurpose digital tire pressure gauge. 7/30/2013
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Reviewed in the United States on July 31, 2013 by John Williamson