Auto Digital Tire Inflator Portable Air Compressor for Cars with Tire Gauge, High Pressure Car Air Pump Upto 150 PSI, with carry case

Compact and powerful compressor that's simple to use. Plug the amply long cord into a cigarette lighter outlet and screw the air hose onto a tire valve. The current air pressure shows on the digital display. Press the increase or decrease button to change the display reading to the desired pressure then press the on button to begin pumping. It shuts off by itself when the pressure is met. I've had 2 other compact portable compressors and this one is slightly less noisy and faster than the others. It appears to be a well made lightweight plastic unit with a thin carry case. The unit functions exactly as advertised. I've inflated a few car & truck tires to 38 lbs, bike tires to 50 lbs and wheelchair tires to 40 lbs. Works good. The air hose is the screw on type rather than press on and latch. When screwing on and off some air escapes before I can get the fitting on or off completely. To compensate for the loss I've had to inflate a pound or two more which works. The screw on type is a lot smaller than the press/latch type and will fit in places the other won't. For example I had to have the screw on type for access to the wheelchair valves. I really like the auto shut off! All considered this is a good little compressor for the money ($37.97 on sale) and indications are it might last for a while. Recommended.April 5, 2018 - The compressor is still working as expected. I did purchase a small press on and latch type connector attachment that eliminates air loss when attaching and disconnecting the compressor to inflate tires and the like. Works great.

I have a 21-foot class-B RV with the following tires: 225/75R 16C (these tires have a diameter of 29.3", a section width of 8.9", and a wheel diameter of 16”)Front tires are supposed to be 65 PSI and rear tires 80PSI (when cold).The RV tire sensor would tell me that (at least) one of the tires was under-inflated but whenever my wife and I stopped at a gas station, the tires would end up with less pressure than we started out with! This would occur because the gas station inflator would fail to reach up to 65PSI (let alone 80). So we decided to buy our own portable tire inflator and selected the Kiasaki.Its 12’ cord would not reach the rear tires, so we bought a 14’ male/female cigaret plug extension cord and with that we could reach the rear tires.I timed how long it took:- Kiasaki filled back RV tire from 62 PSI to 80 PSI in 18 min- Kiasaki filled front RV tire from 56 PSI to 65 PIS in 12 minI did both front and back tires by running the Kiasaki 50 minutes, mostly continuously (just stopping to unscrew and re-screw onto the next tire).It stopped automatically when reaching PSI specified but would stay on PSI specified for about 2 or 3 minutes before it stopped on its own.It did not have to stop due to overheating.Don’t know how good the long-term durability of Kiasaki is because this is the first time I've used it but it worked very well on topping off all 4 large RV tires, which require a higher pressure than normal auto tires.

So I use this prime early in my off-road rig for airing up tires after I air down or re-inflating low tires. I've owned it for two months now and the PSI gauge and related components have failed. it has a built-in pressure gauge that will shut off the compressor once the desired PSI has been reached this has stopped working it's stuck pretty much all the time between 55 and 57 PSI and since that is higher than the PSI I have programmed for it it will not turn on the compressor. every once in awhile I can fiddle with the light switch on it and the PSI gauge turns off completely and then I can just use it manually as a compressor and check the PSI every once in awhile while filling. I will probably try to return it if Amazon will allow me and try something else out cuz I took very good care of it kept in its case in a compartment in the back of my car and it has not been dropped or gotten wet and yet apparently had some poor workmanship.

The compressor worked well; the tires inflated quickly. What did NOT work was the automatic digital gauge that was designed to stop the compressor at a pre-set setting. One of my tires was down to 27 pst. I set the Kiasaki gauge to 33.5 psi and walked away for a couple of minutes. Upon returning, the compressor was still pumping air -- the gauge displayed the pressure at 40.2 psi. I quickly let the air out until it reached the proper setting. With the other tire I eyeballed the gauge until it reached 33.5 psi before I unhooked the hose. I'm shipping back the Kiasaki back to receive a replacement.

I wanted something compact to keep in my car without taking too much space. And, of course, capable of doing the job. This product checked my requirements and so far I am happy with my purchase. Easy to use and quick to fill my tires. I have used on the car and on my bike, no problems. The only thing I was divided about is that you cannot just hold the hose in place, you need to screw it. The good side of this is that you don't need to keep holding it or making pressure while it works, it is easy to screw it to the tire valve and it turns itself off automatically when it is done. However, you must be fast to unscrew it, otherwise you end up loosing air during the process. Maybe it is possible to buy an adapter to hold the hose without screwing it to the valve.