pH meters are widely use in the food industry for determining if food is protected from microbial attack through pH control and of course in the investigation of water chemistry. pH is measured for waste water, and for dosing control, concentration and other industrial or agricultural applications.
The Lutron pH-222 is rugged, waterproof to IP67 and easy to use. Display is digital with two decimal point resolution. Calibration is straightforward, and automated for standard buffer solution values. Accuracy is better than 0.1 frpm 4 to 10 after calibration.
Representing truly excellent value, the meter has replaceable electrodes. It has functions such as reversing display [use it upside down] and data hold, as well as Power Off to conserve batteries.