The Walchem WDIS410-1NNN controller is now obsolete and has been replaced by the WDIS410-1NNU controller which now has integrated USB datalogging and software upgrade capability.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