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
Control: Manual/Electric combination valve, 120 VAC Standard, other voltages available SPL (Loudness) on Total: 140 ± 1 dBA @ 1 meter Operating Medium: Air, nitrogen, CO2, 3/4” NPT inlet Air Consumption: 44 L/Sec [96 SCFM] @ 7 bar [100 PSIG] Audibility: 6 km on still air (3km radius) Fundamental Frequency: 311 Hz ± 10 Hz Tone (Musical Note): D4 sharp Operating Pressure: 7 – 10 bar [100 – 150 PSI] Operating Temperature: -40ºC to +85ºC [-40ºF to +185ºF] Finish: Primed and painted safety red polyurethane Degree of Protection: IP 56 Basic Dimension: 690x690x383mm [27x27x15”] Net Weight: 23 kg [50 lbs]