Cable, pH/ORP, 20 ft., for external preamp output
Preamplifier Assembly, External mounting, pH/ORP/ISE
Preamplifier Housing, pH/ORP, No ATC, 20 ft. cable, for WEL
Works with Walchem W300, W400, Webmaster, and Wind Controllers
Walchem pH Sensor Assembly, (W1/6) pH Housing w/Preamplifier, PT1000, 20' Cable, Submersion Mounting (191653-20+WEL-PHF-NN), 158 Deg F Max, for W100/600/900
Walchem Electrode, pH, flat, HF resistant
