Hanna Instruments HI87314 EC and Resistivity Portable Meter

The HI-87314 is a combination, portable meter that can read conductivity in four different ranges and resistivity.
For conductivity measurements, a one-point calibration is performed via a trimmer located in the battery compartment. The supplied probe does not require recalibration when switching from one range to another.

The four-ring (stainless steel) probe has a built-in temperature sensor that automatically compensates for temperature changes.

For resistivity measurements, the meter is factory calibrated and, if necessary, calibration can be adjusted. The HI-3316D resistivity probe is easy to clean and requires little maintenance. It also features a built-in temperature sensor to automatically compensate for temperature variations. The temperature coefficient is user-selectable from 2 to 7%.