Designed for industrial use, the Kahlenberg Model S-0A Air Horn is an extremely durable unit built for a lifetime of trouble-free service. Where compressed air is readily available, the S-0A Air Horn is the most economical means of achieving a general warning signal in excess of 130 decibels. The S-0A operates with electric solenoid or other actuating valves of 1/8" pipe size or greater.Product Specifications LENGTH INCHES16 WIDTH INCHES6-11/16 HEIGHT INCHES6-9/10 CONSTRUCTIONBrass MANUFACTURERS PART NUMBERS-0A NF VOLTAGE--- WEIGHT LBS.4.75 BRANDKahlenberg DECIBELS131 dB(A) @1M DECIBEL131 dB(A) @1M FREQUENCY322 Hz PRESSURE REQUIRED50-200 p.s.i. PRODUCT GROUPIndustrial Horn AVERAGE AIR CONSUMPTION9 SCFM AIR CONNECTION1/8 FNPT