![WHELEN GAMMA2 SIREN](http://ypsignal.com/cdn/shop/products/Gamma-1-1024x735_976x700.jpg?v=1634175284)
![WHELEN GAMMA2 SIREN](http://ypsignal.com/cdn/shop/products/Gamma-1-1024x735_976x700.jpg?v=1634175284)
The Self-Contained Gamma Siren Series from "Whelen Engineering" is a low-cost siren that provides a wide range of features and has 23 scan-lock siren tones. With horn button generates an Airhorn tone and the manual button generates a variety of tones as pre-selected by the user, up to 3 tones.