The WFDN series of waterflow detectors from Safe Signal improve the performance and installation of water flow detection. With a NEMA 4 rated housing, this waterflow switch can be used indoors and outdoors with a temperature range of 32F to 150F.
The WFDEXP is an aluminum housed waterflow detector, that is classified for use in Class I, II, and III hazardous locations. Built to be used indoor or outdoors, this switch is rated for use from 32 to 160 degrees.