Hanna Instruments Portable Total Hardness Photometer with CAL Check – HI97735

The HI97735 is a high-tech portable photometer that measures total hardness in water up to 750 mg/L. (ppm). This meter has an advanced optical system that employs a reference detector and narrow band interference filters to provide extremely fast and repeatable measurements.
  • There is no need to warm up before taking a measurement.
  • Step-by-step instructions are provided in tutorial mode.
  • CAL Check is used to verify and calibrate performance.