The Robertshaw 2374 series adjustable air sensing switches are designed to replace a wide variety of air sensing switches found in residential and light commercial applications including furnaces, electronic air cleaners and humidifiers. Model are currently available with adjustable ranges. Model are provided with an SPDT switch that can be actuated by positive or negative pressure or by pressure differential. Highly accurate, these switches are practically insensitive to temperature change with an operating temperature range of -40 - 190 deg F (-40 - 88 deg C).

Robertshaw® Air Pressure Sensing Switch, Series: 2374, 5 A, 120 - 277 VAC, 28 VDC, 1/4 in Spade Connection, SPDT, 0.25 - 1 in WC, 0.5 lb/sq-in Maximum Pressure, Vertical Mounting, Pilot Duty: 1 A 120 V-A, -40 to 190 deg F, 3-1/4 in W x 4 in H x 2-1/8 in D

• Field adjustable control setpoint
• Air sample line connectors will accept 1/8, 1/4 or 3/8 in tubing
• Vertical operating-mounting position for diaphragm