AstroAI Digital Tire Pressure Gauge, 230 PSI 4 Settings Heavy Duty for Car Bicycle with Larger Backlit LCD Flashlight and Non-Slip, Black

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If shortly – the Tire Pressure Gauge by AstroAI Digital is just a great tire pressure measuring tool.Some details are below. (Please note - TPG for a tire pressure gauge.)What do I expect from the “perfect” TPG?1. Accuracy.2. It should be convenient to use.3. Reliable and durable.4. Decent price.I’ve been using the TPG by AstroAI for more than 3 months and here is what I can say about it.1. I don’t have handy the calibrated professional TPG to be able to state whether it IS accurate or it is not. But, this TPG displays values that coincide (less than +/- 0.5 psi) with two digital TPGs I own (one is the JACO SmartPro Digital Tire Inflator Pump’s built-in TPG and the second is my old TPG.) To my opinion, this is absolutely acceptable accuracy. Especially, if take into account the fact that a tire pressure may vary significantly depending on, for example, ambient temperature - at least 1 psi difference (for small and middle-sized tires) to each 10 degrees difference of ambient temperature. (E.g. you measure tire pressure in the morning or the afternoon.)2. This TPG’s appearance is different from most of the others. (Instead of trying to describe what the difference is, I suggest that you check almost any TPG on Amazon and you’ll get what I am talking about.) But what is important, this TPG is convenient to hold in hand during measuring procedure and it perfectly fits valves of my car’s tires (no air leaks).Its display is excellent and the numbers are big and perfectly visible both on a sunny day and at night.This TPG uses two standard AAA batteries (non-rechargeable). I think that the only disadvantage of such a solution is that once in a year (maybe rarer) I will have to replace the batteries. Anyway, the alkaline batteries are usually safer than Li-ion rechargeable batteries.There is one feature that I want to specially mention. The standard behavior of the digital TPGs that I’ve used and read about is the following: after you checked the pressure in a tire, then TPG’s display keeps showing the current values for some time (usually around 30 sec.) and then, the TPG turns off. Checking the pressure in another tire within this time might be confusing. So I usually long-pressed my old TPG’s power button to turn it off and then turned it on again. So, smart folks from AstroAI asked themselves a simple question – how many tires we usually check during a single “session”. I bet that most of us usually measure pressure in all tires the car has. So, they implemented a simple, yet a brilliant option – when you finished checking the pressure in the first tire, then after about 10-15 sec this TPG resets the just measured values and gets ready to the next measuring. If you don’t want to check another tire, then in another 10-15 sec the display turns off completely, but if you want, then you have this time (10-15 sec) to continue. The second measuring will restart the TPG’s “timer” and it gets ready for the third one. So convenient!(Well, maybe this feature is not unique, but it is for me.)3. Reliability – I’ve used it for maybe 30 times and no any kind of malfunction so far. I even checked the pressure 3 times in raw in one tire and got the very same values.As for this TPG’s durability, it’s difficult to say now, but it looks and feels pretty solid! So, if you don’t intentionally throw it or use it as a hammer, then I don’t see why it can’t last for years. ;)4. Price - I think that it’s fair for such a quality device.Verdict: 5 stars – absolutely recommended! This is an excellent tire pressure measuring tool with a cool feature.Update (Sep 13, 2019):As the reviewer of this TPG, I’ve received the question this morning regarding the batteries and batteries discharge indicator. This prompted me to make short research… The result was slightly unpleasant – this TPG does NOT have any indicator of the discharged battery and the battery icon on the display is just a fake and does not change its behavior when the inserted batteries are seriously discharged. When the batteries are OK, then the gauge works just fine, but if you turn ON the gauge and it doesn't launch, then, most likely, the batteries are completely discharged.I considered decreasing the rating to 4 stars, but then I decided not to do that. The TPG still works just fine and this “incorrectness” may cost half a star, rather than the full one. ;)

I used this tire pressure gauge for the first time the other day, and it was everything I hoped it would be.In the past, I struggled with the connection on any of the gauge styles I owned due to the varying angles involved. I chose this one for the straight connection, hoping it would be easier, and it definitely was. The digital display is a great upgrade from a dial, and it reads more precisely than anything I've seen to the fraction (34.2, 34.8, etc).The little flashlight is an excellent feature if you need to use this in the dark, and the display is backlit, which is also helpful.All in all, this was a great buy, and I recommend it.

Unit works but it was open with batteries already installed and box was open. I dislike paying for something new, but getting something used.

Quality product

I've been working on cars for over 40 years and know the importance on checking your air pressures at least every 2 weeks. Correct tire air pressures ensure long tire life (along with 5000 mile rotation) and your car returning good gas mileage. A good air gauge will more than pay for itself in 2 years.My previous air gauge was an Craftsman electronic readout (Made in USA) and it had a metal air chuck. I had it for at least 15 years when I noticed that I started getting some inaccurate readings. Time for a replacement . I researched what was available, found this one on Amazon, and pulled the trigger.So I've had this air gauge for almost 2 years now and I really like it.First - I prefer air gauges that allow you a "straight shot" at the tire air valve - essentially you use a stabbing motion to get a air reading, no worries about slipping off of the tire air valve.It's hard to find a reasonably priced air gauge that has an ALL METAL air chuck (the part that connects to your tire air valve). This air gauge fills that requirement.All metal chucks last a LOT longer than cheaper plastic chucks found on cheaper air gauges.Also, this gauges' all metal air chuck is DEEP - meaning that it goes far down on the tire air valve and won't slip off.I like how the body has molded finger grooves so that you have a secure grip when using it.I've checked the air pressure readings against a shop gauge that costs $$$$ and this little $16 gauge was spot on.The gauge has an automatic shut-off feature that keeps it turned on long enough to check all 4 tires air pressures without worrying about it turning off.If you're looking for a great Christmas or Birthday present for a "car person" look no further - they'll probably not be expecting this, and after they use it a few times, they'll be thanking you for such a great air gauge - seriously! ;-)

Very accurate tire pressure gauge. It is spot on with my other tire pressure gauges. I like the light on the front and the led backlight for the readout. Well worth the price.

Very well built and accurate. Works perfectly