Directional, Dual Tone *EFFECTIVE OUTDOOR COVERAGE OF UP TO 3.5 KILOMETERS • Dual tone, 370 Hz / 622 Hz fundamental frequency, engineered with off chords to grasp attention in order to enhance warning effectiveness • Ideal for noisy industrial areas • Energy efficient with hermetically sealed diaphragm • Will operate on a wide range of pressures without requiring tuning or field adjustment for years of trou- ble-free service • Constructed of high strength cast aluminum with stainless steel fasteners * Signal will produce a sound pressure level of approximately 70 dB @4 km in calm, cool conditions without topographical interference. Signal strength at distance can vary dramatically depending on environmental and geographical conditions. Please consult factory for more detailed information. Operating Medium: Air, nitrogen, C02, 1/2" NPT inlet Control: Manual, solenoid or combination valve SPL (Loudness) on Total: 141 ± 1 dBA @ 1 meter Air Consumption: 22.6 L/Sec [48 SCFM] @ 7 bar [100 PSIG] Tone (Musical Note): Ds sharp / F4 sharp Website: www.kahlenberg.com Email: [email protected]