Tire Pressure Gauge Reviews and Buying Guide
Tire Pressure Gauge Reviews
Tire pressure is something that has recently come into the spotlight again as gas prices continue to rise and consumers are more aware of ways in which they can stretch their gas mileage on a gallon of gas. Tire pressure ultimately decides things like handling, tire tread wear, and gas mileage for your automobile. The first thing you need to know is what tire pressure your car tires should be at. In surveys, the vast majority of car owners have no idea what their tires pressure should be set to. Many just let the guys at the oil change shop inflate the tires when needed and others never even consider checking. Almost all gas stations have inflators so you can add air and many of these also have a simplistic gauge for tire pressure. Ideally you want to know the exact PSI (pounds per square inch) for each tire so it’s a good idea to invest in a decent tire pressure gauge of your own. From reports that we read from reputable sources, keeping your tires properly inflated can improve gas mileage from 3 to 5 %. The longevity of the tire will also be increased by maintaining the tire pressure on your tires.
To find the rated tire pressure for your car and tires, check on the inside of the driver’s side door (along the doorframe). If it’s not listed there, check the owners manual and lastly if you still can’t locate the information, check with the store or shop where you bought the tires. Experts recommend checking the tire pressure every month to make sure your tires are staying properly inflated. The one # many people say is misleading are the ones you find on the side of the tires. These PSI recommendations from the manufacturer are for the maximum allowable tire pressure, so always go a few pounds underneath that #, especially in the summer when tires heat up and expand. The # you find usually relates to “cold” tire pressure which means check the pressure in the morning before you drive the car. You will get the most accurate reading this way. There are lots of different kinds of tire pressure gauges you can buy. The old fashioned sliding gauge that resembles a pen is still sold, but they are less accurate than other types. The digital tire pressure gauges are the most accurate and the most expensive, but your cost savings on gas will easily make up for the purchase. The dial type pressure gauges are around $15 to $25 and work reasonably easy. The newer digital tire pressure gauges from Accutire are the best on the market and give you exact and accurate readings every time. They cost about $15, are lightweight, and some are even programmable so you can input your tire pressure specifications and not have to remember each time you check your tires. Some newer cars are being built with tire pressure monitor systems which tell the driver when tire pressure has dropped below a certain level. You can buy these systems for around $250 if you want. A much cheaper way to go is the Tire Safety Monitors sold HERE. They cost $20 (for a set of 4) and they attach to your tires where your valve stem caps used to be. They start off green and when the tires have lost 2-3 psi (or more), you will see a red flag pop out. It’s a great way to monitor your car tire pressure at a glance. No matter how you decide to check your air pressure in your tires, make sure you do it once a month and keep healthy tires on the road for the safest driving conditions. Beyond getting better gas mileage, your car will handle better and you will have less chance of things like a tire “blowout”. Ultimately, your tires will wear more even and last much longer. I used to never check my tire air pressure and it cost me $100’s as I had to replace all 4 tires due to uneven tire wear (somewhat related to balanced tires and alignment issues). We tried looking for reviews on tire pressure gauges and found some excellent customer feedback and opinions on Amazon.com and in car forums. RECOMMENDED – We suggest shopping online at Amazon.com since they carry all the leading brands and often have the lowest prices.
Best Basic Tire Pressure Gauge:
For a basic tire gauge with the dial readout, consider the Accu-gage Tire Guage for around $15. Reviews on Amazon were favorable in terms of accuracy and preciseness. Not all tire valves are eacy to access, but with the “swiveling, angled chuck”, it’s no problem. If the tires are slightly over inflated, simply use the push button valve which will slowly let out air to your desired psi. The #’s on the gauge are quite large and easy to read. They sell a slightly different version for bikes and cars (0 to 100 psi) on the same website listed above. The pencil style pressure gauges, like the Draper Tire Pressure Gauge are about $20 as well and sell in most automotive parts stores. Most car owners prefer the dial gauges or the digital ones we have listed below. BEST – The #1 selling Moroso 89560 Tire Pressure Gauge, Dial Type, 0-60 psi – designed for racers but still very accurate for those at home or in the shop. Owners say it is easy to read and very durable.
With technology has come the new digital tire pressure gauge which reads your tire air pressure accurately and quickly. The Accutire MS-4350B Programmable Digital Tire Gauge ($13) is perhaps the most popular of all. This programmable pressure gauge lets you record the factory recommended tire pressure for both the front and rear tires so you can easily determine if your psi reading is too high or too low. The MS-4350B reads 5-99 PSI in .5 pound units. The backlit LCD screen allows you to see the actual reading in all light conditions. The comments on Amazon are almost all very positive but some owners make note that some valve stems are hard to reach with this product. Some of the basic dial pressure gauges will work on wheels where the stem is harder to access. The Accutire MS-4000 gets reasonable reviews as well as the MS-4652B which is a key chaing digital tire gauge.
Daytona Report
The long awaited season opener for the AMA Pro Flat Track Grand National Singles Championship season has come and gone. I had such an awesome time the last two weeks and while I feel I could of done better, I was able to achieve a couple of podium finishes for the week and got out of there in 3rd place overall for the championship which was much better than last years start. My highlight of the week was making the podium and getting a second place finish on the new short track on its inaugural night at the famed Daytona Speedway in front of a sell-out crowd of more than 5,000. The only thing better was winning at the famed Daytona Stadium in 2009, the last time anyone will get a chance to do it again. Cool stuff for sure!!!
My trip started out a bit sketchy. Like every Daytona, you prepare all winter long yet some how it always comes down to the last minute for everything to come together. This year was no different. We managed to get it all covered with our new 2009 Cycle Dynamics CRF 450 getting prepped with components from RHC, Boughner Racing, K&N, Motion Pro, Spectro Oils, DP brakes, Engine Ice, Vortex gears and D&D pipe. My trusty Bettencourt Suzuki which I used last year to take a win at Daytona was also prepped with a full rebuild from top to bottom. I was ready for racing. I couldn’t have done all the prep work without the support and sponsorship help from my crew chief Dustin Say. Dustin put in a ton of hours stripping my bikes down to the bare frames and rebuilding them back to mint race condition.
Neeses SC and Savannah GA, Half Mile
On the trip down I stopped off at Neeses SC to get some testing in since I have never ridden a fuel injected dirt tracker before. I changed suspension companies and also wanted to see how well my new Boughner Racing suspension was going to work. The tests went well and the Honda was hooked up and handled better than I expected. The Suzuki felt great too and it was really hooked up as well. I left Neeses and made my way to Savannah, GA for some half mile testing. I sat out the first two nights because I didn’t want to put too much time on my new engines. I waited to Saturday night so I could make some money. During the evening it was clear the guys who raced the previous nights had their set ups dialed and already knew which lines were good on the track. It took me a while to get adjusted to the new 09 CRF too, since the fuel injection made throttle control quite a bit trickier. I took my time getting up to speed, qualified fine and was ready to race. In the race I had a problem with my bike really hooking up. I worked the entire track looking for a good line but ended up taking 5th overall. While I wasn’t particularly happy I made a few bucks to offset some fuel costs. Later the next day working with Kenny Tolbert we discovered mytire gauge was reading 6 lbs off. That meant I was running like 21lbs in my front Goodyear and 26lbs in my rear. And I wonder why I couldn’t get any grip…..
Baberville Half Mile
The next day we had a race at Barberville. I made sure this time the air in the tires was correct and went out for practice. The track was really rough, but I like it when the track is challenging like that. I ran pretty good but wanted to slow the bike down a little for the heat race so I added a tooth to the rear gear. I managed to win my heat and got ready for the main event. In the main my bike was working really good and I felt strong. I managed to take a second place finish and collected a few more bucks and continued to learn about the new bike.
Daytona Short Track Day 1
I finally made it to the short track at Daytona for a practice day. When I got off the track the first time I was convinced it was not very good and it stayed not very good the entire day. I knew that anything we did to set up the bikes to work in these conditions was going to be useless for the next days race and that was very true. The next day was race one and it started around 10AM with the first free practice. The next two practices would be timed and they would count for the qualifying positions. I had a first good run and was fifth but on the second timed run I ended up eleventh. I was not happy but since I still got a front row start I knew I could do something in the heat . I was on the outside of the front row but got an awesome start. We ended up with a red flag because a couple of riders got into each other. On the restart I nailed it again and managed to run up front chasing Carver as we broke away from the pack. I was catching Carver a little bit at a time but was making little mistakes here and there. We both did, but in the end I had to settle for second place. It was way cool and I really wanted to get up there on the podium the first night and thank all the great people who have been supporting me.
Daytona Short Track Day 2
After a little celebration from the night before we knew things were going to be tougher on day two. By now everyone was getting a feel for the track conditions and I expected it to be harder to qualify well too. The track unfortunately was nothing like the night before. Whatever set up worked on Wednesday was not working on Thursday. Mike Boughner came over and worked on the suspension and things go a little better each time but I was really spinning up the reartire . It was too late but I knew half way through the practice that I should have used my Suzuki instead. The Suzuki has less power and the day before I didn’t use it because it hooked up too much! I was committed now and had to make it work. I ended up qualifying like eight and that was a little better than the day before. In the heat I felt confident I could make it work and end up either first or second but I got stuck behind a rider and couldn’t get enough grip to make the pass.
In the final I initially got a great start but the race was red flagged. On the restart I got pinched out and had to fight for every position. I just couldn’t get a lot of forward motion out of the bike and was forced to settle for a 6th place finish. I was not a happy camper about that. After I had a chance to cool down I reviewed the night with Dustin and realized some things we would do differently. I got out of Daytona by making the main events on both nights out of 75 riders. I made it on the podium in the most prestigious of all short track races and came away with enough points to put me into third place in the championship. Now all I have to do is find the funds to be able to make the west coast rounds so I don’t fall behind in the points too much.
I want to thank all my sponsors for all their help. To David Ashi for letting me crash in the RV at Daytona and to all the support, grub and everything. I couldn’t do it without friends like you. To my bud Scott Rosey for being the man. To my crew chief Dustin who flew down on his own dime to work with me, I couldn’t of done it without you. To Rhonda and Dave Waters thanks for all the help down there I hope I made you laugh. And, the same to my good friend Broc, who had a tough Daytona but let me crash with him in Savannah.
Digital Gauge Kit suits hand-operated press models
January 6, 2010 – Battery-powered Digital Gauge Kit offers user selectable readout in lb force, tons, metric tons, kilonewtons, or kilograms. Readings are generated in 100 lb increments, but optional increment settings of 1 lb or 10 lb are available. Each gauge features LCD face and is configured to individual press model.
Table-type tire pressure gauge
Table-type tire pressure gauge
Timely adjustment of tire pressure
Driving a car tire safety performance indicators, while the tires subject to pressure, temperature, load, speed, traffic, continuous driving time, and many other factors, one of the most critical is the air pressure. To ensure that vehicle safety when driving at high speed performance, through effective methods to control speed and continuous driving time to adjust tire pressure and temperature, so that tire pressure is safe driving range. Functional Analysis: Table-type tire pressure gauge is a very useful little equipment, can accurately read the tire pressure, and has good durability to ensure that the correct tire pressure can be used to enhance road safety.
Digital Pressure Gauge suits outdoor applications
Leveraging MEMS-based sensing technology, IP67 rated Model PG7 features full 5-digit display with 0.4 in. characters. Unit is available with ranges from vacuum to 500 psi and from 0-10,000 psi, with ±0.25% full scale accuracy and .01 digit resolution through 100 psi. Equipped with all stainless steel sensor that is resistant to vibration and shock, gauge includes microprocessor-based circuit with Tare, Peak Hold, and Max-Min capability. Lockout feature prevents unauthorized access.
Solar Power Digital Tire Pressure
I just got done playing with a nifty little automotive gadget, a solar power digital tire pressure gauge. The auto gadget in question is from BudgetGadgets.com, which shipped from Hong Kong, so be prepared for a slighly longer lead time on your order. That aside, this Digital Tire Pressure Gauge arrived in great condition and professionally packaged for the long haul.
As for the tire pressure gauge itself, it is a phenomenal little auto gadget. It’s well made, feels sturdy, and the plastic that it’s made out of actually feels good in your hand. Although a little large, it obviously would fit perfect in a glove compartment and since it’s solar powered you never have to worry about keeping batteries changed.
Some features that I immediately noticed was the red LED light positioned right at the tip of the gauge. This enabled easy finding of the valve stem in the dark or in poorly lit areas. Likewise the digital screen is backlit with a low red glow which makes for easy reading in any light.
As for accuracy of the digital tire pressure gauge, it appeared spot on. I checked pressures against a traditional tire pressure gauge and found no descrepancies, other than the digital being more specific. Also, the readings were returned immediately, no waiting necessary so less of a chance to lose air when checking tire pressure.
All in all I would recommend this $7.34 auto gadget to anyone, even if you already have a traditional tire pressure gauge. It definately makes a no brainer for my wife and serves as a pleasant reminder to keep our tires in proper pressure condition. Visitors from The-Grayline.com are also able to get a coupon for their purchase by using the code CM5OFF4, which will give a 5% discount at checkout.
Classification of Digital Pressure Gauge
Precision digital pressure gauge (0.05) (0.1) (0.25)
General Digital Pressure Gauge (0.5)
Remote points according to whether:
Place display digital pressure gauge
Digital Pressure Gauge with Remote
Safety Performance points:
Intelligent Digital Electric Contact Pressure Gauge
Intelligent Digital Pressure Record Form
Pressure around
Air pressure (atmospheric pressure) in any unit area on the surface of the air pressure generated by molecular motion. Is usually measured by a high degree of cross-sectional area of units at and above the weight of the vertical atmospheric column
(1) the definition of gas pressure
Role in vessel wall of gas pressure on the unit area is the gas pressure.
p=F/S p = F / S
(2) gas pressure causes
From the molecular kinetic theory we can see that the gas pressure is frequently a large number of molecular collisions arising from the container wall. A single molecule of the vessel wall collision time is very short role is not continuous, but a large number of molecular collision frequency wall, right wall of the force is a continuous, uniform, this pressure and the ratio of wall area is the pressure of the size of .
(3) The unit of pressure
International System unit: Pascal, abbreviated Pa symbol Pa.
Common unit: standard atmosphere.
1atm=1.013×10^5Pa=760mmHg 1atm = 1.013 × 10 ^ 5Pa = 760mmHg
(4) The method of calculating pressure
Equilibrium conditions are usually law and Newton’s laws of motion method (the formula is only a rough calculation, and sometimes the values measured are not allowed, all should be based on the actual date).
The size of air pressure and altitude, air temperature, atmospheric density, is generally higher with a high degree of exponential decline. Pressure with diurnal and annual variation. One year, the high pressure in winter than in summer. One day, the pressure has a maximum value, a minimum value, respectively, in 9 to 10 am and 15 ~ 16 o’clock, there is a second high-value and a second low-value, respectively, in 21 to 22 am and 3 ~ 4 pm . Diurnal variation of atmospheric pressure to a lesser extent, generally 0.1 to 0.4 kPa, and decreases with higher latitude. Pressure changes and wind, the weather is good or bad and so close, so it is important to meteorological factors. Commonly used pressure units Pa (Pa), mm Hg higher (mm · Hg), millibar (mb). The conversion relationship between them as follows: 100 Pa = 1 mbar ≈ 3 / 4 mm Hg higher. Commonly used in meteorological observation instrument measuring atmospheric pressure with mercury barometer, air box barometer, barometer. 101.325 kPa pressure (760 milli-Migon column), known as the standard atmospheric pressure, which is equivalent to the acceleration of gravity is 9.80665 meters / sec 2, the temperature is at 0 ℃ 760 millimeters of mercury column vertical high pressure, standard atmospheric pressure, first from Italy Scientists measured Tory split profits.
Related words:
Barometer: Measuring air pressure equipment, the most common are mercury barometer and the two kinds of empty boxes barometer. Several instruments are more accurate …
Digital Tire Pressure Gauge
The original Roadgear “Hi-Tec” tire pressure gauge was (and still is) a popular “must have” item for motorcyclists. Roadgear has probably sold a zillion of them to motorcyclists around the world. Its light weight and unique shape make it an ideal accessory that can be carried under the smallest of seats.
But time marches on, and Roadgear’s newest iteration of the device is so small and light that it brings to mind comparisons like Chihuahua vs. Bulldog, finishing nail vs. railroad spike or Ford Ka vs. Excursion. You get the idea…
The original version of the gauge is 155mm (6-3/32″) long, and the handle was 18mm (~11/16″) thick and 37mm (~1-1/2″) wide. It weighed in at 46 grams, or 1-5/8 oz. Certainly not a heavyweight, by any stretch of the imagination. But the slim new model really does make the old one seem quaint. The new design weighs in at less than half the original, at 21 grams (3/4 oz.). It’s 139mm long, and the thin oval shape is only 17mm (~11/16″) wide and 15mm (~9/16″) thick.
Not only is it lighter and smaller, it has more features — it includes a tire tread depth gauge! The and opposite the valve has a retractable tread depth gauge, calibrated in millimeters and inches. It will measure from 0 to 20mm or 0 to 3/4″.
The older design had a bend in the body near the head, which made it easier to fit under a motorcycle wheel’s brake rotor on many different tire/wheel/disk brake configurations. It was a
breakthrough design in tire air pressure gauges because of this shape. The new design is so much thinner that this really isn’t an issue. If you can’t fit this gauge on a tire’s valve stem, there’s probably no way you’re going to fit an air compressor valve stem fitting on it anyway.
The shape of the valve stem adapter has also been revised on the new design. We never really had any problems with the old design, and we found that it was relatively easy to fit it over a tire valve stem, enabling the user to get a pressure reading without losing much air from the tire. The new design has a round head with what seems to be much closer tolerances, and it fits very easily and snugly on to the tire’s valve stem, making it easy to get a reading without losing any excess air at all. It does seem to require just the right angle and pressure to get a reading though, but it doesn’t take long to find the best approach.
To bring a motorcycle tire up to the correct pressure, it’s usually best to add a few pounds more than is required, and then bleed off the excess until the desired reading is attained. Some users complained about the older style gauge, because it didn’t provide the ability to bleed off the excess air. But I found that it was easy to bleed off air using the old style simply by pressing it lightly on the valve stem, just like taking a reading but without pressing all the way down.
It doesn’t take much time at all to lose a pound or two from a (relatively) narrow motorcycle tire, so this method worked for me. The new gauge has a valve depressor nub on the back of the head, which is the recommended method to relieve the pressure. I still find it easier and quicker to apply light pressure without flipping the gauge over, but the choice is yours.
The only downside of the new gauge is that the digital readout ends up being located on the back side, which is then 90 degrees from the line of sight if the tire valve stem is perpendicular from the ground. The old gauge has the readout on the left side, so if you’re right handed, you could take the reading and see the results without having to flip the gauge.
This was helpful, especially if the gauge wasn’t precisely centered on the valve stem, which can result in an erroneous reading, usually designated by “0.00″ on the readout. If the tire is rotated until the valve stem is at the bottom of the tire, pointing straight up, the new style gauge can be positioned so that the digital readout will be pointing straight up, making it easier to see.
Otherwise, the new gauge requires that you take the reading, take the gauge off the stem, flip it sideways to view the smaller readout, then put it back on the valve stem. It gets a bit more complicated if you have to flip the gauge over to use the valve depressor nub to bleed out some air.
In any case, it’s much easier than it sounds, and it’s probably not a big deal unless you’re very used to using the old system. We occasionally run into some balkiness if the second reading is taken too soon after the first, where the gauge will give the “0.00″ error reading.
The newly revised Roadgear digital tire pressure gauge will read from 5.0 to 99.5 psi in half-pound increments. Roadgear claims that it’s accurate to ± 1% (e.g., ± 0.4 psi on a 40 psi tire), and they offer a nifty five-year warranty. The new gauge (like the old one) has a lifetime battery. Isn’t modern technology wonderful?
Remember that having the correct motorcycle tire air pressure is extremely important. As we mentioned in the original review of the Roadgear tire pressure gauge, motorcycle tires are very sensitive about correct tire pressures, partly because there is a correlation between the contact patch and the tire’s pressure; other reasons involve the way the tire’s internal reinforcement will cause heating and cooling cycles that may be affected by internal pressures. The bottom line is that changes in tire pressure can have dramatic effects on handling, braking and traction.
Improper tire pressures can also affect tire wear. Roadgear’s website has some numbers that indicate a 30% reduction in tire pressure can reduce tire life by 48%. Although a 30% reduction is pretty dramatic, and I would guess that webBikeWorld visitors would never ride their bikes with such under-inflated rubber, the point is still valid, especially considering the cost of motorcycle tires. Even a few PSI less than required can change the wear characteristics of tires.
The lesson here is that it’s really important to check your bike’s tire pressures before every ride. The valve stems on some motorcycle wheels can be hard to access, and it’s easy to tell yourself you’ll do it next time. But tire pressures should be checked before every ride.
The Roadgear Digital “Hi-Tech” tire pressure gauge costs about twice as much as a good quality pencil type gauge, but its light weight, stealth black grippy finish, accuracy and cool nylon carrying case make this one accessory that’s too cool to ignore.
New style gauge has thinner, narrower profile.
New gauge has a tire tread depth gauge on the flip side.
- Old style gaugeNew style gauge has thinner, narrower profile.
Old vs. new style Roadgear Digital Tire Pressure gauges.New gauge has a tire tread depth gauge on the flip side.
Based on MCS Control Design and Implementation of Digital Pressure Gauges
Abstract: This paper introduces a precise digital pressure gauge of hardware and software implementations. The method with atmospheric pressure through the pressure sensors, the corresponding analog voltage value, and after V / F transform input to the microcontroller for processing to real-time display the corresponding pressure values. Using the method described in this article digital pressure gauge made and easy to carry, simple operation, high accuracy, full compliance with design requirements.
1. Introduction
Pressure Gauge is the use of pressure-sensitive device under test pressure will be directly transformed into easy detection, transmission of current or voltage signal, and then through the subsequent processing circuitry and real-time display of a device. The core component of which is the air pressure sensor, which monitors the pressure in the size, control pressure changes and physical parameters of the measurements plays an important role. Digital pressure gauge of the pressure sensors used are basically relying on the pressure changes of different heights to get the pressure value.
Meteorology studies have shown that in the vertical direction, atmospheric pressure decreases with height increase. For example, in low-rise, each rising 100m pressure to lower 10hPa; in 5 ~ 6km of high-altitude, height for each additional 100m, pressure will be reduced 7hPa; and when a high degree of further increases, that is 9 ~ 10km altitude, the height of each additional 100m, pressure will be reduced 5hPa; Similarly, if there was a downward air flow, the pressure will increase; if there is an upward air flow, the role of the air column at the bottom of the air pressure is reduced. General to act on the unit area on the weight of the air column is called atmospheric pressure
2. The Structure of Digital Pressure Gauge
One pressure sensor is used to convert the measured pressure voltage signal; with the V / F converter can put pressure sensor output voltage signals into a certain frequency pulse signal; in order to use microcontroller to receive the pulse signal and in accordance with per unit time within the pulse number, voltage and frequency based on a linear relationship to calculate the pressure corresponding to the value, in the end MCU controlled by the LED display.
The digital pressure gauge of pressure sensor can be accurately measured within the linear range of the corresponding pressure values. Be explained is that its measured value is the absolute pressure values. Digital pressure gauge of this study the technical indicators are as follows:
● measuring range: 300hPa ~ 1050hPa;
● Accuracy: 0.1% FS (20 ℃);
● Display accuracy: 0.1%, from four 8-segment LED display of;
● Operating temperature range: 0 ~ 85 ℃;
● Supply voltage: 9V.
3. System Implementation
In the system building process, the need to consider the stability, complexity, cost and ease of debugging and other factors. Modules there is no complex signal transmission, and interference with very little, so overall system more stable.
Pressure Sensors
Digital pressure gauge of pressure sensor in the central position occupied. Designed according to measurement accuracy, measuring range, temperature compensation for measuring absolute pressure values, and several other performance indicators to select the air pressure sensor.
As the digital pressure gauge shows the absolute pressure values, and therefore need to select the value of the pressure measuring absolute pressure sensor. Meanwhile, in order to simplify the circuit, improving stability and anti-jamming capability, requested that the air pressure sensor with temperature compensation should be.
To this end, I use Motorola’s MAX4100A pressure sensor to measure the absolute pressure values. The sensor temperature compensation range of -40 ~ +125 ℃; pressure range of 20kPa ~ 1050kPa; output voltage signal (Vs = 5.0V) range of 0.3 ~ 4.65V; measurement accuracy of 0.1% VFSS, at the same time In the 20kPa ~ 1050kPa good linearity when the specific output relationship is as follows:
Ｖｏｕｔ＝Ｖｓ(０．０１０５９ Ｐ－０．１５２８) Vout = Vs (0.01059 P-0.1528)