WPH410-52NU Walchem pH Controller (WPH410-52NU)
The Walchem WPH410-52NU 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, two isolated analog (4-20 mA) outputs, none, 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.