The Walchem WPH410-5N1N controller is now obsolete and has been replaced by the WPH410-5N1U controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WPH410-5N1N and the WPH410-5N1U have the same specifications with on/off control outputs, hardwired, cable glands, no 4-20 mA output, preamplifier (190783) w/10’ cable, pre-wired.
Please click here to view and/or purchase the new replacement controller and to view literature.
