Gas air warning horn 842 series

Our Pneumatic Audible Alarm Horns (Air Horns) are used for any application where an audible alarm warning is required. Our Air Horns are compatible with Series 400 annunciatos, 300 & 700 Series Pneumatic Pressure Switches. Trumpet Material: ABS Plastic Paint Finish: N/A Base and Diaphragm Mounting: Thermoplastic & Zinc Plated Steel Diaphragm: Brass Rear Cover: Polyethylene Penumatic Connection: Brass (available for 6mm. or 1/4” metal, nylon, plastic tubing or PVC covered copper tube Mounting: M6 x 12 stud fitted with nut and washer Frequency Hz: 842-1: 784 842-2: 622 842-3: 523 Length (mm): 842-1: 160 842-2: 210 842-3: 280 Diameter (mm): 80