
Greystone GFS Pressure Switches
The GFS air pressure switch is a general purpose airflow proving switch designed for HVAC and Energy Management applications. It may be used to sense positive, negative, or differential air pressure.
• The housing contains a diaphragm, a snap-acting SPDT switch, range adjustment knob with increments
• An enclosure cover guards against accidental contact with the live switch terminal screws and the set point adjusting knob with indication.
• Includes 2 pick up tubes and 2 M (6.56’) of PVC tubing
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Greystone AFS Pressure Switches
General purpose airflow proving switch designed for HVAC and Energy Management applications. It may be used to sense positive, negative, or differential air pressure.

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