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The Extech EX900 ExStik® 4-In-1 Kit includes a CL200 meter, pH and ORP electrodes, reagent tablets (50 tests), four plastic cups, a weighted stand, pH buffer pouches, four CR2032 batteries, 48-inch neckstrap, carrying case, and user manual. The meter measures total chlorine, pH, ORP, and temperature with interchangeable flat surface electrodes that are included.