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PH-STOR: pH Electrode Storage Solution PH storage solution for HM Digital’s PH-200 / PH-80 as well as other brands of pH meters. Always make sure y...

COM-300: Waterproof Professional Series pH/EC/TDS/Temp Meter The COM-300 is a professional grade level pH/EC/TDS/Temp meter ideal for all water qua...

PH-200: Waterproof Professional Series pH/Temp Meter The PH-200 is a professional grade pH/Temp meter ideal for all pH testing water. With its adva...

COM-100: Waterproof Professional Series EC/TDS Meter The COM-100 is a professional grade level EC/TDS/Temp meter ideal for all water quality testin...

PH-200 Replacement Probe (Replacement pH/Temp Sensor for PH-200) Measures pH and Temperature

COM-300 Replacement Probe Specifications (Replacement pH/EC/TDS/TEMP Sensor for COM-300) Measures pH, Conductivity(EC), TDS, and Temp Measures Tem...

COM-100 Replacement Probe Specifications (Replacement EC/TDS/TEMP Sensor for COM-300) Measures Conductivity(EC), TDS, and Temp Measures Temperat...

HM-200 TDS/EC Replacement Probe Specifications (Replacement EC/TDS sensor for HM-200) Measures Conductivity and TDS Measures Temperature Probe: He...

HM-500 TDS/EC Replacement Probe Specifications (Replacement EC/TDS sensor for HM-500) Measures Conductivity and TDS Measures Temperature Probe: He...

20 Pack Sodium Chloride(NaCl) EC/TDS Calibration Solution (20) packets of 20 ml 1000ppm / 2mS / 2000 µS solution

COM-300L: Waterproof Professional Series pH/EC/TDS/Temp Meter The COM-300L is a professional grade level pH/EC/TDS/Temp meter ideal for all water q...