Features: 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; 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 Automatic Temperature Compensation Accessories: PH4-P - 4pH Buffer Solution (2 Bottles) PH7-P - 7pH Buffer Solution (2 Bottles) PH10-P - 10pH Buffer Solution (2 Bottles) PH103 - Tripak Buffer Pouches (4, 7 and 10pH plus rinse solution) CL205 - ExStik® Replacement Chlorine Electrode Module CL203 - ExTab™ Reagent tablets (10pk - 100 tests) CL204 - ExTab™ Chlorine Reagent tablets (100pk - 1000 tests) CL207 - Chlorine Standard PH100 - ExStik® pH Meter 650470 - Tripak Dry Powder Buffer Capsules (4, 7 and 10pH) Specifications: pH: 0.00 to 14.00pH Chlorine (ppm): 0.01 to 10.00ppm Temperature: 23° to 194°F (-5 to 90°C) Max Resolution: 0.01pH, 1mV, 0.01ppm, 0.1° Basic Accuracy: ±0.01pH, ±4mV, ±10% of reading ±0.01ppm; ±1.8°F/±1°C Memory 15 readings Dimensions/ Weight: Meter: 1.4x6.8x1.6" (35.6x172.7x40.6mm)/ 3.85oz (110g) The Extech EX800 ExStik 3-In-1 Kit includes the CL200 meter and pH electrode, reagent tablets (50 tests), four plastic cups, a weighted stand, pH buffer pouches, four CR2032 batteries, 48 inch neck strap, carrying case, and user manual. The meter measures Total Chlorine, pH, and Temperature with interchangeable flat surface electrodes that are included. Flat surface electrodes work in liquids, semi-solids and solids. Built-in memory can store/recall up to 15 readings and save the last calibrated value. It has a large 3-1/2 digit (2000 count) digital display with a bargraph and an automatic electronic self-calibration function for Chlorine (1, 2, or 3 point buffer calibration for pH).