Walchem 102581 pH/ORP Sensor Electrode PH Transmitter 20Ft.

This is a New Old Stock (NOS) Walchem sensor assembly manufactured in 2016/2017. The electronic preamplifier housing, integrated Pt1000 ATC, 20-foot cable, and 3/4" CPVC tee are unused, pristine, and fully functional. Due to pH electrodes natural shelf-life, the included WEL-PHF cartridge is assumed to be expired due to age and is included strictly AS-IS for housing compatibility reference. Buyer will need to supply a fresh WEL-PHF-NN cartridge.