Audio: 2 types - PWM or VCO

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For additional guidance on detector maintenance and field repairs

with frequency shift to reduce electromagnetic interference

Gold Buddy 2" x 1.25" Suction Nozzle nokta logo Audio: 2 types - PWMPrecision manufactured from thin wall plated steel tubing with machined orifices to create maximum suction. Ideal for shallow water dredging conditions. Gold Zinc plated for years of rugged service. GOLD BUDDY 2 INCH SUCTION NOZZLE Precision manufactured from thin wall plated steel tubing with machined orifices to create maximum suction. Ideal for shallow water dredging conditions. Gold Zinc plated for years of rugged service.