AUTDER Digital Tire Inflator with Tire Gauge Pressure, Portable Air Compressor Pump with 12V 120 PSI LCD Screen LED Light and 3 Nozzles for Car, Bike, Basketball and Other Inflatables

Like some others, I've got a slow leak in one tire (out of the 12 tires on cars and 8 tires on bicycles). I also have a portable compressor that's made for filling tires, but it's kind of big to drag out and lug around. Also, it needs wall power every couple tires to refill it's little tank.So - bought this compressor after reading the reviews.I've used it a couple times now...once to top up the low tire, and fill all the others in my little fiat (30lbs and 35lbs for front and rears). It worked well, and didn't take all that long. Much easier than dragging out the larger compressor. I didn't realize it then, but if you set the compressor to fill to 35, it stops there, and then after a second, the gauge reads 34. So, like another poster wrote - it reads a pound low when filling. So now I set it to go one pound over, and when it finishes, its correct.Today, I filled the tires on my Mecedes, and they were all 2-3 pounds low. The rears are set at 42, and the fronts at 38, so the pump had to work longer to get those inflated to full pressure. And after the first two tires, the front end of the pump was HOT (and yes, the instructions say this will happen, and yes - I know that any time you compress air it gets hot). So I let it cool off a bit before filling the other two tires. The battery was still going strong, but I think - if you let the compressor get too hot, too often, it will likely shorten it's lifetime.One other thing I meant to do was to check the accuracy of the gauge with a stand alone tire gauge. Will report back when I get a chance.Overall, I'm glad I made the purchace. Good tool to keep in your car!Update: 31 Oct 2019 - The pump is still going strong. I have filled a few tires, and topped off a BUNCH, and it still runs like new. Since I use it every week (slow leak in that dang Fiat tire), I plug it in to charge it after every use. It is fully charged again after just a few minutes, so I stow it back in the trunk.

There seemed to be issues with what I received as it did not run very long before it started actually smoking.The seller was communicative and reasonable about it. We determined that there was a defect in the one I got and I did not wish to go through all the hassle of a return or exchange. However, we came to an agreement and I am fine with that.So because the seller is honorable I decided to change my rating. I did not get a chance to actually test one that is in proper working order. So I can no longer leave my review as it was. But since I did receive one that had a defect, I still will have to deduct one star.So what I can say about it is that it was nice looking and it did work well until my specific issue would occur. The aluminum case is rather fragile from scratching, so I wouldn't lay it on the ground or such while it is running as the vibration will probably scratch it. You'd probably just want to keep it in hand or lay it on a rag. At least if you are holding it you can feel when it begins to start getting hot and give it a break to cool down before using it any longer. Maybe use that cool down time to get a charge back in it if you have electricity available to do so. It will work best on a full charge.I'm gonna give it 4 stars and leave it at that.

I got this last July 5 months ago, used it 4 times since purchase exclusively on car tires as it was my choice for emergency cordless compressors. On the 4th use that may have totaled no more than 6 minutes of continuous use over a span of 8-10 minutes (2 tires from 32PSI to a target of 42PSI, the trachea hose burst a leak and was unable to continue pumping my tires.Directions are a little sketchy but the buttons are somewhat intuitive after a short trial and error period.Also the base of the trachea that attaches to the compressor gets dangerously hot after 2-3 minutes of continuous use. My kit only had one trachea even though the picture shows two. Also the charger is not a usb compatible plug and requires an outlet, so car charging is a little problematic for cars without a DC outlet.Overall the item is very accessible with a few minor short comings. I contacted the customer service and they responded promptly with the offer of a replacement trachea, albeit a shorter one.Companies like this should have a parts/replacement program for these instances, instead of having to buy a whole new unit and throw the defective one into a landfill. Otherwise why offer warrantee/extended warrantee programs at all?Just a suggestion to save a little bit of the planet.

The unit is fairly simple to use. The instructions are not written in the best English. At one point they describe the charger as a 2.6v charger .. but is really 12.6v, which they mention elsewhere. I have a bicycle which runs 75 PSI in its tires. If I want to top them off before riding, and they are at 68-72 PSI, I have to let air OUT of the tires until they are BELOW 60 PSI, or else you will get a "HP" (high pressure) error. Once the tire is filled to the desired pressure, you must disconnect it as quickly as possible, as air leaks back out via the pump seals. Nevertheless, it's self contained with its own power source, and small enough to tote in an accessory bag on your bike. It's a better option than the CO2 bike pumps.

This wireless air inflator works well for car, truck, and low pressure MTB tires. However, there is one serious engineering flaw: the inflator won't work if the current pressure in the tire is greater than 60 psi. It says so in the operating manual on the last page. I also verified it myself and with the manufacturer. Other tire inflators do not have this restriction. Most of the time I just want to top off my tire pressure from 85 to 95 psi, and I can't do that without having to deflate both tires down below 60 psi first, which is very annoying. This is also an inconvenience to tubeless road tires that use liquid sealant as deflating the tires could cause the sealant to leak out of the valve stem. In addition, the built-in pressure gauge reads one psi low when compared with other known accurate pressure gauges.