WPH410-541U Walchem pH Controller (WPH410-541U)
The Walchem WPH410-541U controller is now obsolete and the closest equivalent is the WPH610HSNAN-NN controller. The new WPH600 series has upgraded features; for reference, here is the description of the old model:
pH/ORP controller, on/off control outputs, hardwired, cable glands, single isolated analog (4-20 mA) output, preamplifier (190783) w/10’ cable, pre-wired, integrated datalogging and config file import/export via USB flash stick.
Choose the new model on our WPH610HSNAN-NN page or select a model more suited to your needs from the WPH600 series controller or one of the other pH controllers.