HI781 Marine Low Range Nitrate Checker HC
HI782 Marine Nitrate High Range Checker HC
HI97749 Chromium (VI) Low-Range Portable Photometer with CAL Check
HI97738 Chlorine Dioxide Portable Photometer with CAL Check
HI97779 Chlorine Dioxide (Rapid) Photometer with CAL Check
HI83399-02 Water & Wastewater Multiparameter (with COD) Photometer and pH meter
HI801-02 iris Visible Spectrophotometer
HI146-00 Pronto Water-resistant Wall-Mounted Precision Thermometer (¡ãC)
HI147-00 Checkfridge™ Remote Sensor Thermometer
HI6421 Advanced Dissolved Oxygen Benchtop Meter with Optical DO Probe (opdo®)