TireWise Tire Pressure At-A-Glance Safety Monitors PSI 28 - 45 4-pack+bonus 1 free QTY 5 NOT ALL TIRE PRESSURE MONITORS ARE EQUAL. ONLY GENUINE TIREWISE TIRE PRESSURE MONITORS OFFER THESE ADVANTAGES: Comes with a lifetime guarantee on performance and accuracy REDESIGNED & IMPROVED fail proof and welded construction of solid brass with chrome finish The only pressure monitor safety-cap that is accurate from 28 - 120 PSI *$13.95 Special introductory offer: get ONE free for your spare with each purchase; one pkg. QTY 4 (normal retail price is $4.95 ea.)