The 295 Series Remote Siren Amplifier(Flush Mount Head)-295HFS2 from" Whelen Engineering" has two different real-time diagnostic tests include: Continuous dynamic testing during normal siren operations and a unique silent test while in the Radio mode with the Manual button depressed. During either operation, one or both red LED lamps will extinguish instantly upon sensing a siren or speaker(s) malfunction.Si-Test � instantly assures you of proper warning capability and two speaker operation for high-risk situations. It also eliminates the need for annoying siren blasts during vehicle inspections or shift changes. Only Whelen offers this "silent" testing, day or night.
Control Head
Amplifier Size