accurate single-point calibration of Groline pH and EC/TDS meters

Replacement cuvetts 2 each:  MI0011

The PRO+ pH meter comes with the Milwaukee SE220 pH probe

Made from white polypropylene

and any pH meter with a standard BNC connector

HM Digital TDS-3 Handheld TDS Meter + C-342 NaCl 342 ppm Calibration Solution Bundle | ATC | Carrying Case digital chlorine meter accurate single-point calibration of GrolineHM Digital TDS 3 Handheld TDS Meter + C 342 NaCl Calibration Solution Bundle Get everything you need for accurate, calibrated TDS measurement right out of the box. This bundle pairs the trusted HM Digital TDS 3 Handheld TDS Meter with the HM Digital C 342 NaCl 342 ppm Calibration Solution giving you a complete, ready to use water quality testing kit for water purification, reverse osmosis (RO) verification, hydroponics, aquaculture, colloidal silver,