Walchem WEL-MVR-21 WEL Series Electrode, Rod Style ORP, Housing with Preamplifier, 20 ft Cable, Submersion Mounting, 1in NPTM Thread on Housing

The WEL Series are modular in design with a rugged CPVC housing that contains the electronics. ORP cartridges can easily be connected or replaced in minutes without tools. The cartridges feature a unique threaded interlock connection and a double o-ring seal, ensuring a watertight fit and secure seating at all times.

The differential preamplifier or 4 to 20 mA transmitter, and temperature compensation element are in the housing, and are not thrown away when the electrode needs replacement. The electrode is powered by the controller it is connected to, so the signal is always preamplified and there are no batteries to go dead.

For more information, please see Brochure