Federal makes the best selling siren, the 2001. This siren has a 128 decible output (prevously 127 decibles). This siren
has a very shrill tone, like a police car.
Another model is the Modulator. This is a "speaker" so to speek. It plays pre-recorded sounds amplified into the
siren. It is very modern looking and is available in several different sound output levels. The more cells, the louder
it is. Note that the bottom level is inactive.
Another electronic siren by Federal is the Directional Speaker Array. It sounds the same as the Modulator, but
only points in one direction. Note that it is not rotational.
