Hanna Electronic PH Temp Pens

Proper pH is important. These Hanna Electronic PH Temp Pensmeters give fast, accurate readings of pH (0-14 ppm), simultaneous readout of pH and temp (both C and F). Battery level indicator and auto shutoff. Automatic temperature compensation. PIN70 is a 7.0 pH calibration fluid. Use periodically to ensure meter is providing accurate readings. HPHS is a storage solution that protects the electrode during storage. Put a few drops in storage cap after each use, used to prolong electrode life.