The Walchem WDEC310-1NKN controller is now obsolete and has been replaced by the WDEC410-1NKNU controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WDEC310-1NKN and the WDEC410-1NKNU have the same specifications with 120 VAC, prewired, no 4-20 mA output, submersion CPVC sensor (10.0 - 100 ms/cm, 20 ft cable), no second sensor.
Please click here to view and/or purchase the new replacement controller and to view literature.
