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TPMS – Tyre Pressure Monitoring Systems

Tyre Pressure Monitoring System (TPMS) is a technology designed to monitor in real time the pressure and temperature of a vehicle’s tyres. These systems use sensors installed in each tyre that measure the pressure and temperature and transmit it to a receiver in the vehicle.

The R141 regulation

The requirement for a TPMS for trailers and semi-trailers is stipulated in the European Regulation UN ECE R141. This regulation makes it mandatory for the trailer’s tyre pressure information to reach the tractor unit, informing the driver if a pressure anomaly is detected.
The main objectives of the R141 regulation are as follows:
– Improve road safety: By ensuring that tyres are always at the correct pressure, the risk of accidents caused by under- or over-inflated tyres is reduced.
– Increase fuel efficiency: Correct tyre pressure reduces rolling resistance, which improves fuel efficiency.
– Reduce CO2 emissions: A vehicle with properly inflated tyres emits less CO2 due to improved fuel efficiency.
– Extend tyre life: Proper tyre pressure prevents irregular and premature tyre wear.

Benefits of implementing TPMS on semi-trailers

The implementation of TPMS on semi-trailers coupled with a fleet management system for semi-trailers offers numerous benefits:

– Improved Safety: The ability to monitor and maintain proper tyre pressure and temperature in real time significantly reduces the risk of accidents.
– Reduced operating costs: Fewer accidents and reduced tyre wear translate into lower maintenance and replacement costs.
– Operational efficiency: Carriers can better manage their fleets and optimise fuel use.
– Regulatory compliance: Adopting TPMS ensures that fleets comply with current regulations, avoiding fines and penalties.
– Asset security: Real-time alerts in case of tyre theft.


The incorporation of TPMS systems in new semi-trailers is crucial to improve road safety and operational efficiency. These systems ensure that tyres maintain optimum pressure and temperature, reducing accidents and improving fuel consumption, as well as contributing to environmental sustainability. Integrating TPMS data within the Fagor Smart Data Services fleet management system enables real-time monitoring and informed decision making, optimising operational efficiency and reducing costs. This combination facilitates a rapid response to detected problems, improving overall transport safety. In short, TPMS, together with FlotasNet, ensures safer, more sustainable and cost-effective operations for transport companies.


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