WDT400-522U Walchem (WDT400-522U)
The Walchem WDT400-522U controller is now obsolete and the closest equivalent is the WCT600HSSAN-BN controller. The new WCT600 series has upgraded features; for reference, here is the description of the old model:
Dual cooling tower controller, hardwired, cable glands, dual 4-20 mA outputs, two graphite electrodes & loose flow switches, 20 ft cables, integrated datalogging and config file import/export via usb flash stick.
Choose the new model on our WCT600HSSAN-BN page or select a model more suited to your needs from the WCT600 series controller or the more basic WCTW100 series controller.