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Simple and quick the Dwyer 460 Air Meter is popular for servicing air conditioning, heating, and ventilating equipment. Direct reading velocity and static pressure scales - both low and high ranges -show supply and return grille velocities, furnace draft, pressure drop across filters, etc. The 460 gives consistent, accurate reults with not tedious calibration. Rugged plastic for rough daily use. Dual velocity rances read 260-1200 and 1000-4000 fpm; pressure rages from .005-.09 and .05-1.0 w.c.
Complete kit includes air meter, return and supply grille probes, angle connector, cleaning materials, instruction card, air velocity caculator, carrying case and one extra plastic ball in plastic tube.
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