The Extech EX800 is a streamlined version of the EX900, offering Chlorine, pH, and Temperature measurement in one IP57 waterproof kit—without ORP. It includes a gel-filled pH electrode, chlorine electrode, reagent tablets (50 tests), buffers, sample cups, and case. Ideal for users who need accurate chlorine and pH testing for pools, sanitation, or aquaculture without ORP functionality.