... ,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 ... fire retardantor PC coverProtection IP65Color WhiteWeight 0.7KgMore... Paddle type air proof Switch