This is the same pH meter as the pH56 model, but with a lower resolution (0.1 pH) and a more affordable price tag. Range of -2 to 16 pH and 32° to 122°F. 0.1°F resolution and +/- 0.1 pH and 1°F accuracy. Automatic single- or double-point calibration and automatic temperature correction from 32° to 122°F. Further bells and whistles are a large digital display, auto power-off, repleacable electrode, and a hold feature that allows you to remove the probe from the solution to more easily read the display. Included 1.5V batteries provide approx. 300 hours of use (automatic calibration uses more power than manual calibration). Also includes calibration solution sachets.

Please note that electrodes must be rinsed after use and stored in electrode storage solution to ensure proper function of the meter.