Milton S-921 Car Safety Tire Pressure Gauge

Last updated date: January 26, 2023

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Milton S-921 Car Safety Tire Pressure Gauge

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We looked at the top Tire Pressure Gauges and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Tire Pressure Gauge you should buy.

Update as December 24, 2022:
Checkout The Best Tire Pressure Gauge for a detailed review of all the top tire pressure gauges.

Overall Take

This tire pressure gauge can read in both PSI and kPa and has a built-in deflator valve for easy use. You'll also get a pocket clip that lets you carry it around with you throughout the day and a small build that makes it easy to store in a glove compartment or other compact space. This tire gauge can measure up to 50 PSI, making it ideal for casual use.

In our analysis of 25 expert reviews, the Milton Car Safety Tire Pressure Gauge placed 9th when we looked at the top 18 products in the category. For the full ranking, see below.

From The Manufacturer

Pencil type passenger tire gauge reads up to 50 PSI or 350 kPa. Milton tire gauges provide accurate, long life with trouble free performance. Gauges are made of durable plated brass with 4 side nylon indicator bar. Always check tire pressure when tires are cold.

Expert Reviews

User Summarized Score

1,865 user reviews

What experts liked

Old school mechanical tire pressure gauge, extremely affordable, made in the U.S., built-in deflator valve, reads in both PSI and kPa, pocket clip
- Tire Reviews and More
Price, durable plated brass construction
- Auto Guide
If you remember helping out your dad in the garage as a child, you’re probably familiar with the old-fashioned pencil gauge. This tool is a time-tested product that simply uses the tire’s pressure to indicate a reading along the measurement rod. Although this tool might be difficult to read for some users, it’s still one of the most accurate products on the market today. Get to know this classic tool so that it’s a consideration for your toolbox. The primary feature that you’ll notice with this tool is the plated-brass exterior. In fact, it looks silver from a quick glance. Within this tough exterior is a nylon, indicator bar. It has four sides in order to maintain its stability as it moves in and out of the brass housing. The square assembly also gives you an easier time with readings. Be aware that this gauge has a smaller measurement range compared to other products on the market. The Milton model only measures between 5 and 50 PSI. For most tires, this range is ample. You’ll only require larger values for more unusual applications. Purchasing a different tool might be necessary in those cases.
- The Smart Consumer

What experts didn't like

Red printing on indicator bar wears/smears easily, isn’t as accurate as other gauges
- Tire Reviews and More
Nothing fancy, very basic tire pressure gauge
- Auto Guide

An Overview On Tire Pressure Gauges

If you’ve ever had a flat tire or, worse, a tire blowout, you know how important it is to have healthy tires on your car. But even brand-new tires will eventually need attention. In fact, experts estimate that tires lose about one PSI of air pressure every month after filling them. The drop is even more noticeable in the wintertime, when the numbers can fluctuate from one day to the next.

But even if your vehicle lets you know when your tires are low, you shouldn’t rely on that measurement. It’s great for letting you know when there’s a situation that needs attention, but it’s not guaranteed to alert you when your tires are dangerously low every time. For that, you’ll need to keep an eye on your air pressure using something called a tire pressure gauge.

Most tire pressure gauges are small enough to store in your glove compartment, where you can keep them safely stored between uses. Keep in mind that some gauges require batteries. You may find yourself ready to do your monthly check, only to find you have to make a stop by a store to pick up a battery.

There are some telltale signs that your tire pressure may be lower than it should be. One is a spongy drive, which is hard to describe until you feel it. As your tire begins to flatten, though, more of its surface area comes in direct contact with the road, which can make it feel as though your wheels aren’t as solid as they once were.

When you hit a bump or ridge in the road, pay extra attention if the shock seems to jolt your car more than usual. As your tires start to deflate, the lack of air reduces the cushion your tires provide for those hits. You’ll notice your car doesn’t handle those road defects as well as it did when the tires were full.

The Tire Pressure Gauge Buying Guide

  • Your tire pressure plays a direct role in the performance of your vehicle. Not only does a well-inflated tire ride smoother, but it also keeps your gas mileage low. As air depletes, more of your tire touches the road, slowing you down and forcing you to use more fuel to compensate. Low tire pressure can also eventually push your car out of alignment.
  • The desired tire pressure varies from one vehicle to another, but newer cars require between 32 and 35 PSI. The exact recommended tire pressure for your vehicle will be listed on a sticker on the door. You should check your tires after your car has been sitting idle for a while to get the most accurate reading.
  • The first thing to consider is whether you want your tire gauge’s readout to be digital or analog. Analog is often simpler to use and doesn’t require batteries, but digital readouts often come with backlit screens, which is handy if you ever need to check your tire pressure in a dimly-lit area.
  • If your gauge’s screen is backlit, check the power it consumes. You may find you’re going through more batteries than you expected. Some screens automatically power off after a certain timeframe.
  • Some tire gauges don’t just check the air pressure. They also include a compressor that fills your tires back up when they’re low. You’ll be able to monitor the gauge as the air flows through the hose to make sure you’re getting exactly the air pressure you need.
  • Air pressure gauges are built to detect a range. Some can go as high as 200 PSI. If you plan to be checking tires on vehicles, bicycles, motorcycles and other items, pay attention to the recommended PSI on each and make sure you get a gauge that can measure up to that point.