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This switch is used in motitoring flowing of air by differential pressure in HVAC or Gas burner.
This switch has application to sensing of exhaust gas in oil, gas boiler and fan heater.
Q:Notes on use
A:The negative pressure port must not be blocked when installing.
The medium that can be connected to the negative pressure port is air.
Can be used as differential pressure switch
Q:Connector Size
A:Positive pressure:BSPF 1/4"(PF 1/4")
Negative pressure:PF 1/8"
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