Combination pH Electrode, Refillable w/ Double Junction BNC Connection. Recommended for use with hydrocarbon, paints, solvents, sea water, strong acid and base, high conductivity samples, Tris ...
Spare tester electrode, goes to HI 98129, and HI 98130 Combo multiparamter testers, HI 98127 and HI 98128 pHep® testers, HI 98120 and HI 98121 ORP testers.