Symbol 2958 from ISO 7000 - Title/Meaning: Interior temperature, trailer Function/description: To identify the control or the indicator for the interior temperature of the trailer.Note: Refrigerated trailers or box van trailers can have internal temperature sensors that provide a warning to the tractor driver if the temperature goes outside some desired boundary. The warning indicator is normally on the vehicle dashboard.
Additional information: 
Refrigerated trailers or box van trailers can have internal temperature sensors that provide a warning to the tractor driver if the temperature goes outside some desired boundary. The warning indicator is normally on the vehicle dashboard.
Own work using: iso.org/obp/graphics/grs/bb21766b-d222-4686-a21b-000c077d6f62 200.png
Vectorization:  Mrmw