40.78.00 Panel Mounted Instruments
40.78.13 Indicators and Meters
40.78.13 Indicators and Meters 40.78.16 Indicating Lights 40.78.19 Switches and Push Buttons 40.78.23 Potentiometers and Manual Controllers 40.78.26 Chart Recorders 40.78.33 Annunciators 40.78.43 Single-Loop Controllers 40.78.53 Relays 40.78.56 Isolators, Intrinsically-Safe Barriers, and Surge Suppressors 40.78.59 Power Supplies 40.78.63 Alarm Dialers