Myron L Replacement pH / ORP Sensors and pH Caps for Ultrameter, TechPro II and DS Meters Part:RPHC6 — pH Cap for 6P, 6PII, ARH1, TPH1 These are the wear parts automatic calibration and live 72-0320RKC Vented Item:Weight, 1 lb

These are the wear parts of a membrane DO sensor and are expected to be replaced periodically — they are the difference between a DO electrode that holds calibration and one that appears to have failed

and the same concentration of your target ion will produce a different reading

and only the bladder contacts the water

Ballast water and bilge water monitoring on ships and in ports

from construction sites to ecological assessments

Myron L Replacement pH ORP Sensors and pH Caps for Ultrameter, TechPro II and DS Meters Part:RPHC6 — pH Cap for 6P, 6PII, ARH1, TPH1 These are the wear parts automatic calibration and live 72 0320RKC Vented Item:Weight, 1 lb These are the wear parts of a membrane DO sensor and are expected to be replaced periodically — they are the difference between a DO electrode that holds calibration and one that appears to have failed and the same concentration of your target ion will produce a different reading