Categories

The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.

• 2001 Series‏‎ (1 member)
• Acoustic Technology, Incorporated‏‎ (7 members)
• Alerting Communicators of America‏‎ (13 members)
• American Signal Corporation‏‎ (11 members)
• Asian Sirens‏‎ (14 members)
• British Sirens‏‎ (3 members)
• California systems‏‎ (1 member)
• City systems‏‎ (6 members)
• Coded Sirens‏‎ (11 members)
• Company pages‏‎ (60 members)
• County systems‏‎ (3 members)
• Defunct Manufacturers‏‎ (28 members)
• Demo template‏‎ (1 member)
• Directional Sirens‏‎ (71 members)
• Disambiguation pages‏‎ (1 member)
• Dual Toned Sirens‏‎ (60 members)
• Eaton‏‎ (2 members)
• Electromechanical Siren Controls‏‎ (6 members)
• Electromechanical Sirens‏‎ (138 members)
• Electronic Siren Controls‏‎ (5 members)
• Electronic Sirens‏‎ (55 members)
• Elektror Airsystems‏‎ (1 member)
• Engine-Driven‏‎ (11 members)
• European Sirens‏‎ (36 members)
• European systems‏‎ (1 member)
• Exclude in print‏‎ (1 member)
• Explosion-Proof Sirens‏‎ (2 members)
• Fedelcode‏‎ (0 members)
• Federal Signal Corporation‏‎ (44 members)
• Friction Sirens‏‎ (4 members)
• Georgia systems‏‎ (5 members)
• H.O.R.‏‎ (5 members)
• HELIN‏‎ (3 members)
• HPSS‏‎ (2 members)
• Hand Powered‏‎ (13 members)
• Hidden categories‏‎ (1 member)
• Hormann‏‎ (0 members)
• Illinois systems‏‎ (2 members)
• Indiana systems‏‎ (4 members)
• Industrial Small Sirens‏‎ (37 members)
• Internal link templates‏‎ (1 member)
• Interwiki link templates‏‎ (1 member)
• Lightning Sirens‏‎ (1 member)
• Michigan systems‏‎ (1 member)
• Mobile Sirens‏‎ (10 members)
• National systems‏‎ (1 member)
• Nuclear power plant systems‏‎ (4 members)
• Oceanian Sirens‏‎ (3 members)
• Ohio systems‏‎ (1 member)
• Oklahoma systems‏‎ (3 members)