Signal lights & sounders

Pilot lights, illuminated pushbuttons, signal towers, beacons, sirens, horns and traffic lights. Each colour comes lit and unlit, grouped under one card.

406 of 406 symbols

Pilot lights & LEDs 144

Stack lights (signal towers) 79

Beacons & obstruction lights 86

Sirens, horns & buzzers 34

Annunciators & LED bars 32

Traffic lights 15

Machine status & work lights 16

Need one that is not here?

Draw it in the free Symbol Builder and export it as PNG or SVG.

Open the Symbol Builder →

ISA-101 flat symbols use grey for the equipment and keep colour for state only (green running, grey stopped, red fault, orange P2, yellow no feedback, blue manual). Each state is a separate file, ready to map to a multi-state object.

Browse and preview for free. Downloading the editable SVG needs an account and counts against your plan’s monthly downloads. Once downloaded, use it in your own HMI, SCADA and documentation projects, commercial ones included. Do not resell or redistribute the symbols as a library or pack.