Pressure Systems International is the global leader in onboard tire management systems for commercial and recreational vehicles. P.S.I. s portfolio includes automatic tire inflation systems (ATIS) for commercial trailers, tire pressure monitoring systems (TPMS) and related products. It s telematics-compatible TireView! TPMS for commercial vehicles was launched in 2019. Both ATIS and TPMS product lines are compliant with greenhouse gas legislation and have distribution in N.A.