Symbol 2813 from ISO 7000 - Title/Meaning: Operator alert Function/description: To indicate that one or more functions or systems on the equipment are operating outside normal parameters in such a way as to require attention or further monitoring of the function or system, but not necessarily to require shutting down the equipment.
pay attention to orientation of symbolAdditional information: 
1. Do not use this symbol for alerting to personal safety hazards. See ISO 7010-W001 for general personal safety warning.2. Do not use ISO 7000-0434 for this application.
Own work using: iso.org/obp/graphics/grs/b06c28fc-6f11-42eb-a0da-2760ad05243e 200.png
Vectorization:  Mrmw