The Walchem WDEC310-1NDN controller is now obsolete and has been replaced by the WDEC410-1NDNU controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WDEC310-1NDN and the WDEC410-1NDNU have the same specifications with 120 VAC, prewired, no 4-20 mA output, in-line CPVC sensor w/ CPVC 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.
