![WHELEN 295HFSC9 SELF-CONT. DUAL SIREN](http://ypsignal.com/cdn/shop/products/295HFSC9-HIGH-LFT-1024x709_1012x700.jpg?v=1634451306)
![WHELEN 295HFSC9 SELF-CONT. DUAL SIREN](http://ypsignal.com/cdn/shop/products/295HFSC9-HIGH-LFT-1024x709_1012x700.jpg?v=1634451306)
The 295 Series Self Contained Dual Full Function with Removable Microphone - 295HFSC9 from "Whelen Engineering" has push-button switches control secondary functions and a silent self-diagnostic feature that provides real-time indication of proper siren/speaker operation.