Fleet Maintenance Product Guide

Tire Inflation System

The Meritor Tire Inflation System (MTIS^TM) by PSI with ThermALERT^TM is now the standard option for Utility trailers spec'd for automatic tire inflation systems. ThermALERT^TM, an advanced MTIS^TM by PSI technology, detects increased wheel end temperatures and helps alert drivers to stop for repairs before serious damage can occur. This early warning helps reduce the potential risk, cost and downtime associated with wheel loss, wheel end failures, and trailer fires.