Features: Direct reading of Total Chlorine provides fast and easy measurements (less than 2 minutes) Low detection limit down to 0.01ppm Unaffected by sample color or turbidity Memory stores, tags and recalls up to 15 readings US EPA approved as an acceptable method for wastewater compliance monitoring of Total Chlorine. Accessories: CL203 - ExTab Reagent tablets (10pk - 100 tests) CL204 - ExTab Chlorine Reagent tablets (100pk - 1000 tests) CL207 - Chlorine Standard CL205 - ExStik Replacement Chlorine Electrode Module PH105 - ExStik Replacement pH Electrode Module RE305 - ExStik Replacement ORP Electrode Module EX006 - Weighted Base and Solution Cups Kit EX007 - Spare Sample Solution Cups (24pk) 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) 650470 - Tripak Dry Powder Buffer Capsules (4, 7 and 10pH) Specifications: Chlorine (ppm): 0.01 to 10.00ppm Temperature: 23° to 194°F (-5 to 90°C) Max Resolution: 0.01ppm; 0.1°F/°C; Basic Accuracy: ±10% of reading ±0.01ppm; ±1.8°F/±1°C Memory: 15 readings Dimensions/ Weight: 1.4x6.8x1.6" (35.6x172.7x40.6mm)/ 3.85oz (110g) CL200 is an ExStik Chlorine Meter. This revolutionary technique measures Direct Total Residual Chlorine from 0.01ppm to 10ppm. It makes non-subjective measurements unaffected by interferences associated with traditional colorimeters and spectrophotometers like sample color, turbidity, light, and pollutants. This product comes with an electrode, five packs of 10 reagent tablets (50 tests), a protective sensor cap, a sample cup with cap, four CR2032 batteries, and a 48” neck strap.