Includes CL200 meter, pH electrode, reagent tablets, 4 plastic cups, weighted stand, pH buffer pouches, batteries and carrying case 3-in-1 Water Quality Meter measures Chlorine, pH plus Temperature with interchangeable flat surface electrodes (included) Flat surface electrodes work in liquids, semi-solids and solids Memory stores and recalls 15 readings and saves last calibrated value Large 3-1/2 digit (2000 count) Digital display with bargraph Automatic electronic self calibration for Chlorine and ORP; 1, 2 or 3 point buffer calibration for pH Data Hold, Auto shut-off and low battery indication Simultaneous display of ppm or pH and "C/"F Temperature