AstroAI Tire Inflator Portable Air Compressor Air Pump for Car Tires-Car Accessories, 9.8Ft Cord-12V DC-Powered Auto Pump with Digital Pressure Gauge, Emergency LED Light for Bicycle, Balloons, Yellow

Used this 3 weeks ago on two car tires that needed air. Worked like a breeze. Easy to use, fast inflation time. Love the auto shut off. This lives in my trunk now. Great tool.

The device worked well on my car tires, no need to use any of the attachments. To use: Start car, plug unit into 12 volt convenience port (cigarette lighter), set memory to pressure level, screw the hose onto the valve stem, flip switch. Very simple, and the default measure is in psi (pounds per square inch), the USA common measure. Other measures, if needed include: "Bar", "KPA", and "Kg/cm^2", for those outside of the USA.I will say that going up a few psi on the pressure will heat up the unit, specifically the hose: in one case, I went from 26 psi to 33! I simply paused 2-3 minutes in between tires, and let it cool down. The instructions do say to measure the width of your tires, and if they are beyond 28 inches wide, don't use this unit.Really, the only complaint I have with this device is that it is pretty noisy, but being a compressor, that really is a minor nit - I just won't use it at 4 o'clock in the morning!Full disclosure: I have only had this for a few days, and used it on only four car tires and one bike tire. I'll try to remember to update my review after long-term usage.

This little inflator works great. Years ago I had a big one, and I was happily surprised that something so compact works so well. I’ve had a slow leak in one of my tires, slow enough that I’m waiting until I replace all the tires before fall and the first snow comes. This little guy has been awesome since then you just set the pressure you want and it automatically stops when it gets there. No risk of over inflation. I love it and would highly recommend to everyone as it’s small enough to store in any vehicle without taking up any valuable cargo room. If you’re debating, just buy it. Finally remembered to write this review because I’ve just used it again in the Walmart parking lot, quickly and conveniently.

It works well and it's easy to use. My tire light comes on when the tire hits around 26, and I inflate it to 35. It seems like it takes a long time (I've never timed it but I can listen to a couple songs on the radio while waiting), it's loud, and it heats up. You have to let it cool down after 10-15 minutes of continuous use. For the price, I like it. It works, it's convenient, and the power cord is long enough that the unit can easily reach the back tires

I’ve used this to inflate my car tires and also my bicycle tires, road bike and mountain bike. It is an excellent pump, very easy to operate.

I am literally on my third buy! I love how quick and easy this is to use!! It’s amazing for the price! The battery life is great and the size is wonderful too!

Oh my goodness! This little guy has been used so many times. We had a slow leak in a rear tire that I had to inflate about every 7-10 days. My daughter came to the house several times for a month to get her slow leaker inflated. Just plug it into the "cigarette lighter outlet", hook to the tire, set the digital pounds that the tire needs to be, and push the button. It cuts off once it reaches the desired pressure. The power cord is very long, but the air line could be a little longer. It reaches the top of an auto tire and sits on the ground. The pump body does heat up if you have to run it for a lengthy amount of time. I've had to add about 20-25 lbs at a time and it does great. Can be used for tires, balls, etc. I've only used it on auto tires and I keep it in my suv. My 27 yr old son liked it and keeps one in his Jeep. Don't pay for air any longer.

I recently had a slow leak on one of my tires, which needed to be replaced soon, so it was not worth fixing. I used to the inflator to add air every few weeks and got almost another year out of these tires. So I say it is worth the money. It worked well; I like the feature of shutting off at the set pressure. I blew a fuse once; I used an socket adapter with a 5A fuse, which was apparently little too low when the battery voltage was a little lower.