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Free Floating Piston Valve results in less wear and tear in comparison to market-standard twisting piston valves
What surfaces can the Testo 805i measure
(7-HEAD KIT) consists of expander heads 3/8″
Large graphic display to evaluate results in graphic form
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Testo 420 Air Flow Hood Kit Includes Hood - 0563 4200 Refrigerant Scale Free Floating Piston Valve resultsThe Testo 420 volume flow hood is suited for HVAC systems and has a control panel for displaying measurement data. The control panel can be tilted or removed to suit user requirements. The Testo 420 measuring instrument lets you measure flow velocity, volume flow, absolute pressure, temperature, and relative humidity. The automatic zeroing function ensures higher accuracy for low pressures. All measuring values are easy to read on the large display
