ETENWOLF T300 Digital Tire Pressure Gauge 3-200 PSI, Industrial Tire Gauge Calibrated to ANSI B40.7 Grade 2A(Plus-Minus 0.5%), Backlit LED Screen, Grey
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Availability:
In Stock.
Arrives
Wednesday, Sep 3
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Color: Space Grey
Features
- PROCESS LEVEL ACCURACY: Each ETENWOLFs digital tire pressure gauge is calibrated manually to ANSI B40.7 Grade 2A(plus-minus 1 PSI)
- ACCURACY IN EXTREME WEATHER: Built-in AI chip with thermal compensation inside, ETENWOLFs tire gauge works normally even in extreme cold or hot weather(-4F-130F/-20C-54C)
- ACCURACY IN EXTREME PRESSURE RANGE: Whether tire pressure is below 12 PSI or above 140 PSI, ETENWOLFs digital tire gauge is accurate as well
- PRESSURE RANGE 3-200 PSI : ETENWOLFs digital tire pressure gauge can measure pressure of all types of vehicles
- REPLACEABLE AAA BATTERIES: Batteries are easy to replace and helps to extend the tire pressure gauges life span, backlit LED display and lighted nozzle make it visible in dark areas
- STURDY AND DURABLE: When a car runs over ETENWOLF's tire pressure gauge, it can't be damaged and still works normally
Brand: ETENWOLF
Material: Plastic
Item dimensions L x W x H: 6.3 x 1.46 x 1.06 inches
Item Weight: 110 Grams
Screen Size: 1.45 Inches
Brand: ETENWOLF
Material: Plastic
Item dimensions L x W x H: 6.3 x 1.46 x 1.06 inches
Item Weight: 110 Grams
Screen Size: 1.45 Inches
Manufacturer: ETENWOLF
Model: T300G
Item Weight: 3.88 ounces
Product Dimensions: 6.3 x 1.46 x 1.06 inches
Item model number: T300G
Manufacturer Part Number: T300G
Date First Available: March 7, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 3
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
Color: Dark Cyan
Reliable, Accurate, and Built to Last This tire pressure gauge is exactly as advertised and more. The ETENWOLF T300 looks just like the photos, and the build quality is excellent—solid, sturdy, and clearly designed for long-term use. It even came with batteries pre-installed, which was a nice bonus and made setup seamless. What really stands out is the accuracy. I compared it against two analog gauges I trust, and the readings were spot-on every time. It’s impressive to see such precision across a wide pressure range, and I appreciate that it’s calibrated to ANSI B40.7 Grade 2A standards. The built-in thermal compensation is also a great touch—I’ve tested it in both hot and cold conditions with no issues. The backlit display and lighted nozzle are practical features, especially when checking pressure in low-light conditions. And the fact that it uses standard AAA batteries makes maintenance simple. Highly recommend this product for anyone who wants reliable, professional-grade results without the guesswork.
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Reviewed in the United States on July 20, 2025 by Matthew S.
Color: Vivid Orange
I’ve gone through my fair share of tire pressure gauges over the years, but the ETENWOLF T300 stands out as a top-tier product. Right out of the box, the build quality impressed me—it feels solid and well-made, with a rugged design that seems ready for years of use. The vivid orange color is a smart touch, making it easy to spot in a cluttered toolbox or glove compartment. What really sets this gauge apart is its accuracy. It’s calibrated to ANSI B40.7 Grade 2A standards, which gives me confidence that I’m getting precise readings every time. I’ve used it on everything from car tires to my bike and even an RV, and it reads consistently within the claimed ±0.5% tolerance. The digital display is clear and easy to read, even in bright sunlight. I also appreciate the fact that it uses replaceable AAA batteries instead of some obscure battery type—super convenient. If you’re looking for a professional-grade tire pressure gauge that’s accurate, easy to use, and built to last, the ETENWOLF T300 is absolutely worth it. Highly recommended!
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Reviewed in the United States on May 27, 2025 by SB
Color: Vivid Orange
I'm not sure how accurate these are but it reads the same as my car/trucks tpms systems. More accurate than any other gage i have! Easy to use. Very easy to read! Functions as it is suppose to!
Reviewed in the United States on July 21, 2025 by Bandwidth88
Color: Vivid Orange
I feel tempted to give 5 stars, but I won't succumb to rating inflation. And I've only owned this for two weeks. Batteries were included, which is nice. And they are real alkaline batteries, not "heavy duty" batteries. It takes regular AAA batteries, so they will be easy to replace. My prior tire pressure gauge wanted a coin cell battery. It is easy to read in multiple respects: Easy to read in bright sunlight, easy to read at night (because it is backlit), and easy to read with an awkward angle because you can measure the pressure, pull the gauge off the valve stem, and then reorient the gauge until you can read it. The reading will remain on the screen for at least 45 seconds. It has an on-off switch, which is nice, but it will also turn off automatically when idle. It remains to be seen if it works in the dead of winter when frozen very cold, which makes batteries much less powerful. It also remains to be seen whether it lasts many years. It is so easy to use, I won't really need the instructions ever again. You can just buy one of these and put it in your glove compartment. It also shows multiple units: PSI (pounds per square inch), kPa (kilopascals), and bar, if I recall correctly.
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Reviewed in the United States on April 30, 2025 by Tropylium
Color: Dark Cyan
When the last of my digital tire pressure gauges, which are no longer manufactured, recently stopped functioning, I began research to find suitable replacements. There are of course many digital tire pressure gauges from which to choose, however the vast majority of them failed to impress for a variety of reasons, not the least of which were their poor or mediocre specifications or numerous user complaints. After a considerable amount of research, I located the Etenwolf T300 digital tire pressure gauges on Amazon. The most significant data which received my attention is that the Etenwolf T300 gauges conform to ANSI/ASME Standard 40.7 2A. I had not previously encountered affordable, consumer grade gauges that were calibrated with that level of accuracy. ANSI Standard B40.7 level 2A is a standard which applies to digital process gauges, and specifies accuracy within a +/- 0.5% span of permissible error. That level of accuracy means that on a 35psi automobile tire, the expected accuracy of the gauge is within +/- 0.175psi which is a ridiculously high level of accuracy for inflating a typical automobile tire. However, that ANSI B40.7 2A claim appears to be an error on the webpage. According to the printed manual which accompanies the T300, and according to the individual Calibration Certificate included with the gauge, the T300 actually conforms to the far more stringent and more precise B40.7 Level 3A standard. B40.7 3A specifies accuracy within a span of +/- 0.25%. That is a level of accuracy that is needed for industrial test gauges. The other specifications provided in the product description included the usable range of 3 – 200 psi which makes the Etenwolf T300 suitable for almost any tire I can reasonably expect to use, including my low-pressure garden tractor tires. Another factor that I found very appealing is that the Etenwolf T300 is powered by 2 – AAA batteries. Many tire pressure gauges require button batteries of various sizes, which never seem to be immediately available to me when they require replacement. With the ubiquitous AAA batteries, I am assured that I will always have replacement batteries readily available when needed, and even when away from home, they can always be easily purchased in almost any local store. Etenwolf provides 2 Duracell alkaline AAA batteries with the T300. I have also used the gauges with Ni-MH rechargeable cells, and they perform perfectly well. I ordered a Cyan case T300 because Amazon had them available for more rapid delivery than the Orange model (there is also a Gray model, which was out of stock when I purchased). Once I received the T300 and evaluated it, I was very impressed. The plastic case appears to be a reasonably thick, and potentially durable gauge of injected plastic. The T300 has a very solid feel and heft, which impressed me. The assembly of the T300 appears to be very good and precise. This tire gauge genuinely appears to be of very high quality. The battery compartment at the end of the unit has a slide-out which also stores an included Presta valve adaptor for high-pressure bicycle tires. The white 4 place LED display digits appear to be 11mm tall x 5mm wide. The gauge resolves to 10th PSI (1 place right of the decimal). Most tire pressure gauges only resolve to ½ PSI display. There is a momentary, rocker type switch on the lower part of the case which controls all functions including power and unit of measure selection. The T300 can measure and display PSI, kPa and bar. Holding the switch for 6 seconds will turn the power off, but the gauge will also shut down automatically after 30 seconds of non-use. After a measurement, the gauge resets to 0 in approximately 5-6 seconds for repeat measurements. The digital display also displays low battery level once battery reserve falls to 20% or below. The nose of the gauge, which must mate with the tires Schrader valve, seals very tightly against the tire valve. There appears to be a compressible rubber gasket in the nose fitting, which ensures a solid, leak-free union with the tire valve. Resultantly, the T300 produces very quick and reliable measurements without the need for repeated repositioning efforts to get an adequate seal for a reliable measurement. There is a white LED lamp below the nose piece which makes use in dim or dark environments possible. I evaluated the functioning of the gauge by taking multiple (many) repeat measurements using both PSI and kPa scales. The repetitive consistency and accuracy of the readings was notable. I was so favorably impressed with the T300 that I ordered a second gauge (this time with the orange case). When I received the second T300 I could not resist comparing them. I collected more than 20 successive measurements, alternating the gauges. (Total of 44 measurements collected). Half of the measurements were obtained in PSI and the other half in kPa. The consistency and accuracy both with the same gauge, and between the gauges was extremely impressive. I believe that the Etenwolf T300 tire pressure gauge is outstanding. It is well constructed, giving rise to the belief that it will be very durable. It is extraordinarily accurate, being calibrated to a measurement standard which applies to industrial process gauges. It functions very well and with consistency. The Etenwolf T300 is the best tire pressure gauge that I have used, and I am hopeful that it will provide many years of reliable service. I would not have purchased two of them if I was not extremely impressed with them!
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Reviewed in the United States on July 14, 2023 by Curmudgeon Curmudgeon
Color: Vivid Orange
I love it! Super easy to use, lightweight, and the light on it is bright and extremely useful. The light turns out automatically so don't panic when you hit the button and it stays on. Also, it registers the tire pressure very quickly. No letting out a bunch of air trying to get the thing to read.
Reviewed in the United States on August 15, 2025 by Will Cassell