1.for gaseous media in air ducts, in air intake or exhaust device 2..quick respond,high accuracy 3.custom made available 4.CE KAFS Air Flow Switch ApplicationControl and monitor liquid flow of boilers, pumps, etc., of heating, cooling, and air conditioning equipment.FeaturesRenovated SPDT micro switch ensures the reliable switch functionStainless steel paddleCut-in and cut-outBrass levelIP65 ...