Categories
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The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Signal Timer (3 members)
- Single Toned Sirens (56 members)
- Siren (1 member)
- Siren Control Equipment (15 members)
- Siren Manufacturers (18 members)
- Sirens (74 members)
- SoCal Edison (1 member)
- Supercharged Sirens (4 members)
- Systems (24 members)
- Systems by company (8 members)
- Systems by state (9 members)
- Systems by type (4 members)
- Systems that use ACA sirens (3 members)
- Systems that use ASC sirens (3 members)
- Systems that use Biersach & Niedermeyer sirens (1 member)
- Systems that use Darley sirens (1 member)
- Systems that use Federal Signal sirens (7 members)
- Systems that use Sentry sirens (0 members)
- Systems that use Sterling sirens (0 members)
- Systems that use Whelen sirens (9 members)