The Hydrolab Dissolved Oxygen sensor is based on a standard Clark Cell design, which is EPA approved, and has been trusted for over 30 years.

• Design based on a standard Clark Cell design, and paired with a sample circulator
• Measures the current resulting from the electrochemical reduction of oxygen diffusing through a selective membrane
• Provides a continuous, steady-state reading

• Low maintenance – no need to "recondition" the sensor
• Complies with Standard Methods Article 4500-OG and EPA article 360.1 that require sufficient sample flow across the membrane
• Circulator also improves response time for all sensors and helps to sweep away traces of pH electrolyte

Range:
0 to 50 mg/L
Accuracy:
+/- 0.2 mg/L for 20mg/L or less
+/- 0.6 mg/L for over 20 mg/L
Resolution: 
0.01 mg/L