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A practical guide to choosing TPMS for semi trucks and fleets: wheel capacity, sensor mounting, repeaters, alarms, and CAN J1939 or RS232/RS485 integration.

Diagram of four TPMS wheel sensors sending tire pressure, temperature and battery data to a vehicle dashboard

What Is TPMS and How Does It Work?

September 23, 2026

What is TPMS and how does it work? Learn about tire sensors, RF and Bluetooth communication, CAN/J1939, RS232/RS485, and passenger and truck TPMS.

Direct TPMS pressure readings compared with indirect TPMS relative wheel status

Direct TPMS vs Indirect TPMS: What’s the Difference?

September 23, 2026

Compare how direct and indirect TPMS detect tire pressure loss, what each system shows drivers, and the maintenance and sensor replacement requirements.