Outfit your semi truck to be Ready for the Road Ahead™ with the exact amount of tire pressure needed, with the Hendrickson Tiremaax® Delphi Connector Pro Controller Assembly. This portable controller allows operators to maintain the ideal tire pressure for vehicles journeying through a number of conditions. Engineered with a pressure-resilient design, and paired with an air pressure gauge and safety release valve. FleetPride is your First Click in Heavy Duty®.