The Walchem WBL400-545N controller is now obsolete and has been replaced by the WBL400-545U controller which now has integrated USB datalogging and software upgrade capability. Otherwise, both the WBL400-545N and the WBL400-545U have the same specifications with bleed & feed, hardwired, cable glands, single isolated analog (4-20 mA) output, standard electrode (up to 250 psi), integrated datalogging and config file import/export via USB flash stick.
Please click here to view and/or purchase the new replacement controller and to view literature.
