Green Estuary & Marine Monitoring Kit Ages 8 up This is a great introduction to testing saline and brackish water with safe and simple TesTabs. Tests include: pH, 10; Temperature; Dissolved oxygen, 10; Biochemical oxygen demand, 10; Turbidity, 10; Nitrate, 10; Phosphate, 10; Chloride, 10; Coliform Bacteria, 2 Includes: curriculum materials, color chart, and test equipment for 10 water samples (2 for Coliform) Qty :