en-us Product Description: * Lightweight digital key chain tire gauge * Easy-to-read LCD display * Rugged ABS construction * Auto On/Off * 5-60 PSI in .5 lb. resolution * Permanent lifetime lithium battery * 2 year warranty * CardedAmazon.com Product Description: Can't remember where you put your tire gauge? Why not keep it on your key chain? With the Accutire MS-46B digital key chain tire gauge, you'll always have it handy whenever you gas up or wash your car. It's a subtle reminder to check your tire pressure often. Proper tire pressure saves gas, extends tire life, and improves vehicle handling. The Accutire MS-46B is small and convenient enough to hang from your key chain. View larger. Small and Convenient The MS-46B is small (it is designed to hang from your key chain) so it won't feel bulky in your pocket or take up a lot of space in your purse. It's made with durable plastic to prolong its life span, whether you decide to keep it on your key chain, in your glove box, or stashed in the junk drawer. It has an easy-to-read LCD display that makes the process of airing up your tires more accurate than conventional tire gauges. Versatile The Accutire has an automatic on/off sensor so that it only switches on when a reading is being taken. It will measure 5 to 60 psi, which makes it perfect for anything from bicycle tubes to larger size vehicles that require bigger tires. Under-inflated tires may cause the vehicle to work harder and therefore decrease your gas mileage, but more importantly an under-inflated tire can actually damage your tires and your vehicle. The Accutire MS-46B is an easy and accurate way to make sure your tires are inflated and working properly. http://www.earlymiser.com/product/B0000WODVU http://ecx.images-amazon.com/images/I/41xGtZNa6sL._SL75_.jpg http://www.earlymiser.com/product/B0000WODVU