The TST 507 Series Color TPMS Display 3.5" Widescreen (TST-507-D-C) delivers real-time monitoring for RVs, trucks, and trailers with a vibrant 3.5" color widescreen display. It alerts you to low or high tire pressure, rapid leaks, and high temperatures, keeping your vehicles safe on the road. The system can monitor your towing vehicle plus up to 4 trailers and 115 tires, including spares, providing complete coverage for large rigs. Designed for easy viewing and fast alerts, the TST 507 Display ensures peace of mind while traveling. Key Features:• 3.5" Color Widescreen Display â Clear, easy-to-read interface• Comprehensive Monitoring â Supports towing vehicle plus up to 4 trailers• Alerts for Safety â Low/high pressure, rapid leaks, and high temperature• Large Tire Capacity â Monitors up to 115 tires including spares• Real-Time Data â Instant updates for quick decision-making Monitor multiple trailers & spare tires at once Easily view information on a vibrant color display Travel with peace of mind knowing your tires are safe