The Walchem WDIS410-1N1N controller is now obsolete and has been replaced by the WDIS410-1N1U controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WDIS410-1N1N and the WDIS410-1N1U have the same specifications with 120 VAC, prewired w/USA power cord and 6" pigtails, no 4-20 mA output, free chlorine/bromine sensor, 0-20 ppm, w/flow cell and 20 ft. cable.
Please click here to view and/or purchase the new replacement controller and to view literature.
