The Walchem WMT8100-1NNNNN controller is now obsolete and the closest equivalent is the WCT600PSNNN-AN controller. The new series has upgraded features; for reference, here is the description of the old model:
WebMaster cooling tower controller, conductivity: contacting PP/graphite electrode 140 PSI, no pH/ORP sensors, no makeup conductivity sensor, prewired w/ USA cords, 7 powered relays, 1 dry contact relay, no flow switch, with in-line mtg hardware, no analog outputs, 6 digital inputs, USB & Ethernet comms software/hardware, no add'l comms hardware, no add'l comms software.
Choose the new model on our WCT600PSNNN-AN page or select a model more suited to your needs from our WCT600 or WCT900 pages.
