The Apera Instruments pH700 benchtop pH meter provides quick and stable pH readings for basic laboratory testing and educational purposes at an outstanding cost-effectiveness. Reliable measurement: with its quality 3-in-1 combination pH electrode and the advanced digital processing technology, the measuring of pH and temperature is quick, accurate and stable (accuracy: ±0.01 pH, range: 0 to 14.00 pH). splash-proof and dust-proof structure design, ideal for use in harsh environment. Intelligent functions: quick& easy auto calibration: automatically recognizes 6 types of pH standard solutions. 0 to 100˚c auto temperature compensation. 50 groups of data storage. Max/min measuring mode available, alternately displaying the maximum and minimum readings. Comes with an easy-to-install electrode holder and 3 bottles of premixed pH calibration solutions (4.00, 7.00, 10.01). the product is CE certified and comes with a two-year warranty for the meter; 6 months for the electrode.