• Convenient digital tire gauge and key chain
• Reads tire pressures from 5-99 PSI (in 1/2 lb units)
• Permanent lifetime lithium battery, turns off and on automatically
• Rugged ABS construction
• 1 year warranty

• Slime 40003 Smart Spair Tire Sealant and Inflator Kit

Keychain Digital Gauge in black with larger display

Customer Rating:
Summary: Save energy
Comment: Barack Obama suggested we maintain tire pressure to get better gas mileage and save energy. This device is accurate, easy to use and takes little space in the glove box.

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Customer Rating:
Summary: Worked so well I had to get another one
Comment: I was trying to put air in my tires at a gas station near my home but was having difficulty. Happens that the rep from the company that supplies the air machine was near by and saw me struggling. He came to help and realized the hose was bad, so he replaced it. He filled my tires for me and used my digital tire gauge to check the pressure. He was so impressed with this little gadget I had to give it to him... hence I had to buy myself a new one.
I find it easy to use. I never let more than a very little air out of the tire when I'm putting it on. Once it's on, it seals pretty well and there shouldn't be anymore air loss. It reaches the tire pressure quickly and it's easy to read while still on the tire. I purchased several for gifts.
The old fashion type is good, but I can never seem to find it when I need it. I hang this in my car and it's always right where I can find it.

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Customer Rating:
Summary: Not as good as I had hoped for
Comment: It's hard to check your tires with this without letting air out of your tires. I will be buying a much better one that hopefully will be easier to check the air in the tires without letting air out. Even for the low price I wouldn't recommend this one.

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Customer Rating:
Summary: Cheap, accurate, you'll need a new one in a year.
Comment: I got this at a brick-and-mortar store for pretty much this price. I was surprised at how accurate it was considering the price. It does require some coordination to get it sealed properly, but it's not that difficult.

The main problem that spurred me to give this review is the fact that I tried to use it yesterday after several months without touching it and got a low battery indicator. I haven't even had it for a year, and only used it a few times! From what I remember, the packaging (long thrown-away) says the battery is not user-replaceable.

I'd rather get something a bit more expensive but that will last.

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Customer Rating:
Summary: reading is off by 10-15 psi...
Comment: the good news: at first when i looked at this product i thought the nozzle at the tip looked super cheap and was afraid it would break off by the 3rd use... the bad news: the pressure readings are off by 10-15 psi!! this will not ever be used 3 times...

this product is garbage

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