Weber Sensors, 4220.53M, Flow-Captor unit type 4220.53M ..Operating voltage 90-120VAC, Flow Output n.o., measureing range 0-20 cm/s to 0-300 cm/s, for water based solutions, 1/2" NPT fitting, stainless steel housing, 6 pin binder connector 4923 - 2 meter oilflex silicon cable ...