The Walchem WPH420-32NN controller is now obsolete and has been replaced by the WPH420-32NU controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WPH420-32NN and the WPH420-32NU have the same specifications with proportional control outputs, 120 VAC, pre-wired wph420 with 10’ cables, with (2) e90495 connectors for ew pumps, two isolated analog (4-20 mA) outputs, none.
Please click here to view and/or purchase the new replacement controller and to view literature.
