AFS Series
Air Pressure Sensing Switches

Model AFS-275 Air Pressure Sensing Switch is a general purpose proving switch designed for HVAC and Energy Management applications. it can be used to sense positive, negative, or differential air pressure.

the plated housing contains a diaphragm, a calibration spring and a snap-acting SPDT switch.the sample connections located on each side of the diaphragm accept flexible tubing.

Precision. Every Day.