HI991001, HI991002 and HI991003
are ideal for plating baths, wastewater,
swimming pool and spa water quality and
environmental applications.
HI991003 is a portable pH/pH-mV/ORP
and temperature meter with our unique
Sensor Check™ feature that allows the
user to determine the electrode status
at any time. HI991002 measures pH/ORP
and temperature while the HI 991001
measures pH and temperature.
