Portable pH/Conductivity Meter

Apera Instruments PC 823-B Portable pH/EC/TDS/Temp Meter

Hanna Instruments HI9814 pH/EC/TDS Meter with Multiparameter Probe

Oakton Portable Meter Kit pH Conductivity TDS Oxygen Temp w/ Case & Accessories

Thermo Scientific Orion Star A215 pH Conductivity Bench Meter with Power Supply

Jenco 3250M Portable Conductivity TDS Salinity Temp Meter - METER ONLY

APERA Instruments SX721 pH/ORP/Conductivity/TDS ++ Portable Meter Kit

Hanna Instruments HI9813-5 Portable pH/EC/TDS/Temperature Meter