The pressure is on. Finally a truly accurate tire gauge that is also affordable and more rugged than any dial-type gauge. Aircraft-grade aluminum body and super-precise internal spring allow this pencil-type gauge to measure air pressure from 10‰ÛÒ50 lbs. with +/- 1-lb. accuracy for any tire. Additional DOT date code information printed on one side demonstrates how to tell any tire's "birthdate" to know when they will start to dry rot and become unsafe. Proudly made in the USA.