3321 warning buzzer products are offered for sale by suppliers on Alibaba.com, of which alarm systems accounts for 10%, alarms, buzzers, and sirens accounts for 6%, and speaker & horn accounts for 6%.
A wide variety of warning buzzer options are available to you, such as plastic, abs and nylon.You can also choose from piezo, warning buzzer,as well as from white, black, and green warning buzzer,And whether warning buzzer is wire lead, {2}, or {3}.