The Robertshaw® 2374-510 Air Pressure Sensing Switch has a glass-filled polycarbonate housing containing a sensing diaphragm and an integral snap-acting switch with three male 90° quick-connect terminals. The switch can sense positive, negative or differential air pressure. The field adjustable set point range of this switch is 0.10” WC to 10.0” WC. Using the switch accessories contained in this kit, the switch can be applied to a wide variety of residential and light commercial HVAC applications.

2374-510 Kit Contents
Air pressure sensing switch
Calibration springs (5 options)
Orifice flows (4 options)
Mounting brackets (2 options)
Calibration tool (hex wrench)

SWITCH, AIR, ADJ, PRES, 1 TO 4 IN W.C

Adjustable set points
Factory set to activate on pressure rise

SWITCH, AIR, ADJ, PRES, 0.25 TO 1 IN W.C

Adjustable set points
Convenient kits for aftermarket installation
Factory set to activate on pressure rise

SWITCH, UNIV, AIR PRES, 14 IN W.C

Hardware kit included
Senses positive, negative or differential pressures