HI83314 Wastewater Multiparameter (with COD) Benchtop Photometer and pH meter
HI83325 Nutrient Analysis Photometer and pH Meter
HI83325 Nutrient Analysis Photometer and pH Meter (Old model HI83225)
HI83326 Pool and Spa Photometer and pH Meter
HI83399 Portable COD and Multiparameter Photometer and pH Meter
HI83414* Benchtop Turbidity + Chlorine, US EPA Compliant
HI839800 COD Test Tube Heater with 25 Vial Capacity
HI8410 Dissolved Oxygen Controller with 4 to 20mA
HI8424 ORP /°C Meter
HI8424 pH/mV/°C Meter- basic (BNC)