The Walchem WDT310-126 controller is now obsolete and has been replaced by the WDT410-126U controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WDT310-126 and the WDT410-126U have the same specifications with bleed, feed, 2 biocides, ph/ORP, & alarm, 120 VAC, prewired, dual 4-20 mA outputs, graphite electrode, ph electrode & tees (in-line or submersion), 20 ft cables.
Please click here to view and/or purchase the new replacement controller and to view literature.
