Federal Signal's Vibratone heavy duty bell product line utilizes a modular approach to combine gongs and mechanisms allowing for greater flexibility and selection. Three gong sizes are available; the Model A4 is four inches in diameter; the Model A6 is six inches in diameter; and the Model A10 is ten inches in diameter. Each larger gong produces a different tone and a higher dB output.

Vibrating bells produce a continuous ringing sound when voltage is applied. The Models 500 and 600 vibrating mechanisms are designed for AC and DC operation, respectively.

The Models 500 and 600 are UL and cUL Listed, CSA Certified and FM Approved.

Federal Signal's Vibratone bells can be used in any industrial application, whether to signal danger or for start and dismissal. A variety of mounting accessories will accomodate almost any environment.