Apera Instruments PH60F-E Replacement Probe for PH60F Flat pH Tester, Also Compatible with PH60, PH60S, and PC60 industrial_Aug2024_update wear-resistant and high in hardness

wear-resistant and high in hardness

nice for cleaning

5" inches tall

for Eyeglass

when ppm figure is over 9999ppm

Apera Instruments PH60F-E Replacement Probe for PH60F Flat pH Tester, Also Compatible with PH60, PH60S, and PC60 industrial_Aug2024_update wear-resistant and high in hardnessApera Instruments PH60F E Replacement Probe for PH60F Flat pH Tester, Also Compatible with PH60, PH60S, and PC60 Apera Instruments PH60F E Probe is the replacement probe for Apera PH60 Series Premium pocket pH testers, including PH60F, PH60 and PH60S. It is also compatible with PC60. This probe features a flat glass membrane sensor with a built in thermister, triple junction structure, and maintenance free gel KCl electrolyte, made for surface pH