K4-1-ENHC Air Alarm

Kahlenberg Model "K4-ENHC" Horns are powerful signals backed by years of successful performance in coal yards, chemical plans, open pit mines and industrial facilities throughout the world. All of these horns and whistles are designed to operated indoors as well as in the most severe outdoor applications. They are simply constructed and extremely reliable resulting in a very low cost of use as compared to more complicated means of sound production.

• Single tone, 311 Hz fundamental frequency, engineered to produce full harmonic contents up to 12 octave in order to enhance warning effectiveness
  
• Extremely durable, ideal for use in industrial outdoor environments
  
• Designed for top of pole or surface mount
  
• Thermostatically controlled heaters included in horns and inside combination manual/electric valve enclosure for extreme weather conditions
  
• Hermetically sealed stainless steel sounding diaphragm assembly
  
• Solenoid/manual combination valve comes standard with explosion proof coil
  
• Constructed of high strength cast aluminum and stainless steel fasteners
  

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