Apera Instruments, LLC-AI312 Apera Instruments Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test e.g. Skin, Textiles, Paper, etc, ±0.01 pH Accuracy

Apera Instruments, LLC-AI314 Premium Series EC60 Waterproof Conductivity Pocket Tester Kit, ±1% F.S Accuracy, Easy Switch of EC/TDS/Salinity, Replaceable Probe

Apera Instruments, LLC-AI3201 LabSen 753 Stainless Steel Spear pH/Temp. Electrode for Foods

Apera Instruments, LLC-AI3719 PC60-Z Bluetooth Multi-Parameter Smart Tester Powered by ZenTest Mobile App, Measuring pH/Conductivity/TDS/Salinity/Resistivity/Temp.

Apera Instruments, LLC-AI501 PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode

Apera Instruments, LLC-AI5512 Apera Instruments ,LLCValue Series EC850 Portable Handheld Conductivity Meter Kit

PH700-BC Benchtop Lab pH Meter for Biotechnology and Pharmaceutical Samples, Liquid Food, Protein-containing Liquids, Compatible with TRIS Buffers