Alarms, Buzzers, and Sirens definition: An alarm device or system of alarm devices gives an audible, visual or other form of alarm signal about a problem or condition. A buzzer is ... Alarms, Buzzers, and Sirens Product Listing: AT33,AT12.Audio Products type:Accessories(132142),Alarms, Buzzers, and Sirens(6697),Speakers(4224),Microphones(2207),Vacuum Tubes(1481) .Alarms, Buzzers, and Sirens has 2 pieces of spot stock price information, you can click the "RFQ" button to confirm the inventory and price with the Twicea.