ETENWOLF T300 Digital Tire Pressure Gauge 3-200 PSI, Industrial Tire Gauge Calibrated to ANSI B40.7 Grade 2A(Plus-Minus 0.5%), Replaceable AAA Batteries (Vivid Orange)
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ETENWOLF T300 Digital Tire Pressure Gauge 3-200 PSI, Industrial Tire Gauge Calibrated to ANSI B40.7 Grade 2A(Plus-Minus 0.5%), Replaceable AAA Batteries (Vivid Orange)
· PROCESS LEVEL ACCURACY: Each ETENWOLF’s digital tire pressure gauge is calibrated manually to ANSI B40.7 Grade 2A(plus-minus 1 PSI) · ACCURACY IN EXTREME PRESSURE RANGE: Whether tire pressure is below 12 PSI or above 140 PSI, ETENWOLF’s digital tire gauge is accurate as well · ACCURACY IN EXTREME WEATHER: Built-in AI chip with thermal compensation inside, ETENWOLF’s tire gauge works normally even in extreme cold or hot weather(-4°F-130°F/-20°C-54°C) · PRESSURE RANGE 3-200 PSI : ETENWOLF’s 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 gauge’s life span, with LED light to illuminate dark areas for easy tire pressure reading · STURDY AND DURABLE: When a car runs over ETENWOLF's tire pressure gauge, it can't be damaged and still works normally · PSI gauge especially suitable for pickups, RVs and heavy-duty vehicles · Auto shut-off after 30 seconds to save battery and ensure prolonged usage of the pressure gauge· Stylish Italian industrial design with multiple color options for a fashionable look, a good gift as car accessories
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CurmudgeonReviewed in the United States on July 14, 2023
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!
SBReviewed in the United States on May 27, 2025
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!
KazzReviewed in the United States on February 6, 2025
I bought my first new bike since I was a kid, now 60yo (Giant Roam) in September here in deep south east Florida, we had a few cold snaps in Jan so I haven't road it since Dec. Just this week Feb 3rd I decided it's time to get back out there, but both tires were flat. I got a little confused on the correct and proper tire pressure on the 700/42c size tire so I purchased this tire gauge from the great reviews. I like how it has 3 digits for pin point accuracy. My GM vehicle has 4 separate wheel tire pressure monitoring system and I like them to be all even as possible. With that being said, I tested this guage on my very large SUV first and my vehicle was showing all 4 at 35lb Cold, this guage was reading them between 34.4-34.7. I assume GM rounds the number up and that's why when you first drive the tire pressure will go up showing different readings on each tire as they heat up from driving and i get one or two that lag on a new pressure. That being said, now i don't have to guess if my vehicle tires are a half Lb off when using my not so accurate 12v pump with dial gauge attached.. My bike, recommended tire pressure is much different, it depends on many suggested factors. For me, 45lb PSI is ideal, 30lb PSI min, 50lb PSI recommended, 60lb PSI Max.. Now, like the kid inside us men, we love to try new gadgets. So unlike a vehicle, especially one like mine with 22" low profile tires on a Full size XL SUV losing a fraction of a lb is no big deal, but keep in mind, if you plan on using it on a bicycle, that split second piss of air as you test your bike pressure, you will lose about 1.5lb each time you keep checking it. Keep your pump ready and only check it once if its already at your correct pressure. No need to repeat the same info as others, but i will say it does not slip off your hand if you know how to handle a tool. Aka, that one video lol. It also self collaborates when it's turned on each time. Oh, and i chose the gray one on the flash sale. Hope this was helpful.. please stay safe out there.
Macedonian customerReviewed in the United Arab Emirates on May 29, 2025
Calibrated, correct, easy to use
Ashish K.Reviewed in India on January 21, 2025
Nice and sturdy product, accurate reading, easy to use. just go for it
MLReviewed in Singapore on November 7, 2024
Just got this tire gauge probe T300. No presta valve adaptor although the product is advertised as having a presta valve adaptor. Returning this back for refund.
NasserReviewed in Saudi Arabia on March 25, 2025
Accurate, light weight, efficient and durable
José AguilarReviewed in Mexico on March 2, 2024
Es una excelente herramienta para la calibración de aire en neumáticos, resultó muy preciso y así mantengo la presión correcta en neumáticos. De fácil manejo y una gran forma ergonómica y además buena manufactura y calidad de los materiales con que está hecha. Lo recomiendo ampliamente.