The Walchem WDEC410-5NBNN controller is now obsolete and has been replaced by the WDEC410-5NBNU controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WDEC410-5NBNN and the WDEC410-5NBNU have the same specifications with hardwired, cable glands, no 4-20 mA output, in-line PEEK sensor w/stainless steel adapter (0.1 - 1.0 ms/cm, 20 ft cable), no second sensor.
Please click here to view and/or purchase the new replacement controller and to view literature.
