pH Meter pH Range 0.00 to 14.00 Waterproof IP67 Automatic Temperature Compensation Auto 0.0 Degrees to 100.0 Degrees C or 32.0 Degrees to 212 Degrees F Displayed Temperature Range 0.0 Degrees to 100 Degrees C Display Digital Auto Power Off No Memory 50 Data Sets Temperature Compensation Range Auto/Manual 0.0 Degrees to 100.0 Degrees C or 32 Degrees to 212 Degrees F Calibration Yes Interface No Cable Length No Cable Power Source (4) LR44 Alkaline Battery Includes Battery