ROCGORLD R8 Tire Inflator Portable Air Compressor, DC 12V Air Compressor Portable with Large Dual Digital Screen, 3X Faster Inflation Air Pump for Car, Bike, Ball, Motor

Purchased this unit to replace a similar item that was battery powered. The battery powered unit worked fine initially, but after only a few years the battery did not hold a charge long enough to inflate even one tire a few pounds. Decided to go with this 12V unit and have been impressed. Plug it it to a 12V outlet in the car, start the vehicle, set the desired tire pressure and it works great. Powerful, convenient and easy to use. Once the desired pressure is reach the Inflator automatically shuts off. Filled all four tires about 6 pounds each in a matter of a few minutes. Everything easily fit into the storage case and underneath my car seat. Only downside was there was not an adaptor that would fit my road bike tire valve stem.

Worked as expected. Amazon's same day delivery saved my road trip. Needed a tire inflator ASAP and a good quality one. This fits the bill... compact, easy to use and had features like auto shut-off when the PSI reached your desired pressure (Default is 35 PSI). Worked right out of the box.

Very quick & easy to use. I love the fact that it's compact and came in a carrying bag. So far so good. The only thing is that the tire pressure numbers that I preset are off by maybe 2 on my actual tire sensor numbers. For instance, I preset the pump to 34 but once the pump auto shuts off when said pressure is reached, my tire sensor numbers read it was only 32. But once I start driving, the numbers will sometimes go up to the preset pump number) its a little noisy but overall, I'm glad I made the purchase. Very useful and helpful to avoid having to find gas stations with working air pumps and it saves money & time. Great to have especially in cold weather where tires deflate a little more often in this season.

This slim tire inflator is about 2 inches wide and 6 inches high (rough estimate). This is the second one I’ve purchased—the first lasted over five years with heavy use before the cord gave out, which was likely my fault. It functions exactly as it should and helps me quickly get tires to the desired PSI. If a tire is flat, it will take some time to fully inflate, and you need to ensure the vent isn’t blocked to prevent overheating. The accuracy is spot-on; I’ve double-checked with another device, and it’s dead on. It’s a good value for the money, long-lasting, and easy to store in your car. It plugs into your car’s adapter (formerly the cigarette lighter). Pros: Slim, compact, and easy to store Accurate PSI readings Durable and long-lasting Good value for the price Cons: Can take time to inflate completely flat tires Must ensure proper ventilation during use Conclusion: Overall, this tire inflator is reliable, accurate, and compact. It’s a practical tool for anyone needing a convenient way to maintain tire pressure on the go.

Just tried it on my car tires, and it worked perfectly. Maybe over-inflated by one psi. Compact and easy to use. Love the carry bag. Just ordered another one for our second car.

Works incredibly well. Runs off your car cigarette lighter with the engine on. As plenty of flats aren't blowouts this can give you the opportunity to refill the tire and get your car to the tire shop without needing to bother with a spare (if you even have one in your car to begin with!). My car had a flat that showed up after it was parked in the garage, completely flat. This thing connected securely on the tire step and filled it up from flat to 39 psi (very straightforward controls) in relatively short time. I wasn't specifically timing it but it felt like somewhere between 3-10 minutes. On the flat concrete of the garage the thing vibrated a bit and moved around, but this didn't impact the connection to the tire or the refilling. Was then able to drive the car 3 miles to the shop without any dangerous loss of tire pressure. This kind of pump feels the best for emergencies, others that rely on batteries seem to be useful mostly to make minor adjustments to pressures and lack both the motor and battery capacity to handle flats in any reasonable time unless you buy something very expensive. As most situations with flats still have running engines this makes a lot of sense.

Only used it once so far but it aired all my tires up pretty quick. No issues while airing. Easy directions for use. Comes with a cute little bag to store everything in. I think it will come in very handy when my tires lose pressure during temperature drops every year. I’m happy with this purchase.

Was hoping this would be perfect. It's not, but it's close. It's super compact and the bag it comes with is handy. Cord is long enough. Powers up as advertised using the lighter port. Attaches to the air valves easily and smoothly. Then the issue pops up, at least with the one I received. The reading was off by about 5 PSI. Used my tire pressure gauge to check accuracy and it's definitely off. However, once I figured out how off it was I just adjusted the target pressure to 5 PSI over the number I needed. Problem solved. Not returning it. Serves my purpose. Had to ding it a star though because of this minor issue.

Très bien