Symbol 2030 from ISO 7000 - Title/Meaning: Monitoring 
Function/description: To identify the display panel indicator which signifies that other display panel indicators must be monitored by the operator for proper machine or system operation.
Own work using: iso.org/obp/graphics/grs/9c9b4031-c5e8-4129-b283-6840605044b7 200.png
Vectorization:  Mrmw