The Grainger Dissolved Oxygen Sensor is an epoxy-encapsulated galvanic sensor designed for measuring dissolved oxygen in water, wastewater and utilities applications. It has a Noryl thermoplastic resin body, zinc anode, silver cathode, polyethylene membrane and Buna-N O-ring seals. The sensor has a 0-20 mg/L (ppm) measurement range, 0-50°C operating temperature range, and <= 8 second response time. It provides accurate dissolved oxygen measurement with minimal maintenance. The sensor is compatible with the Myron L Ultrameter II 6P, 9P, 10P and LXDOT dissolved oxygen meters.