Cleveland Control AFS-227-161 Switch
Air Flow Switch, .05" ± .02"-12.0"w.c., 120-277Vac, SPDT Contact Arrangement, 1/2 Psi Maximum Pressure, Air or Combustion By Products that will not Degrade Silicone
QUESTIONS & ANSWERS
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We are looking to use this as a low pressure switch for an exhaust system serving a class 1 space. we are looking to show that the device, when mounted outside the air stream, is intrinsically safe thru the pneumatic sensing tube.
You will have to contact Cleveland Control tech support for further assistance on this.