The PSTI_SRF for Semi-trailer trucks monitors the slope of the terrain at the time of tipping, preventing the bucket from rising when the vehicle is at risk of tipping. exchange between Tractor (Horse) and Semi-trailer nication between CPU / Monitor and Sensor eliminates the need for a connecting cable or Suzi Cable. Meets Resolution 563 of the CONTRAN (Audiovisual e Operator when tilting). IP 67 protection to withstand harsh conditions in mining and water jet environments. Complete monitoring with messages at all stages of the tipping, increasing the life of the hydraulic system. Locking of tipping in unsafe conditions. Settings with password protection. Complete kit. Ready for installation.