SPDT Differential Air Pressure Switch .25" - 1.0" WC. These 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. Highly accurate, these switches are practically insensitive to temperature change with an operating temperature range of 40°F to 190°F (40° to 88°C). They are U.L. and C.S.A. approved for aftermarket applications. Each switch is provided with mounting hardware and an adjustment tool for easy installation and calibrationCLEVELAND CONTROLS RSS495-037 Exact,
CLEVELAND CONTROLS RSS-495-11 Exact,
UNI-LINE 66201312533 Functional,
UNI-LINE RSS-495 Functional
