Features
DOG-209FA type oxygen sensor improved from the previously dissolved oxygen electrode, change diaphragm into a grit mesh metal membrane, with high stability and stress resistant, can be used in a more harsh environment, maintain volume is smaller, suitable for urban sewage treatment, industrial wastewater treatment, aquaculture and environmental monitoring and other fields of continuous measurement of dissolved oxygen.

Technical Indexes
Ultra resistant to pressure (0.6Mpa) wallop, imported (grit mesh metal membrane)
Up thread: M32 x 2.0
Measuring range: 0-20mg / L
Measuring principle: Current type sensor (polarographic electrode)
Breathable membrane thickness: 100μm
Electrode shell material: PVC or 316L stainless steel
Temperature compensation resistance: Pt100, Pt1000, 2.252K etc 
Sensor life:> 2 years
Cable length: 5m
Detection limit: 0.01 mg / L (20ºC)
Measurement limit: 40 mg / L
Response time: 2min (90%, 20ºC)
Polarization time: 60min
Minimum flow rate: 2.5cm / s
Drift: <2% / month
Measurement error: <± 0.01 mg / L
Output Current: 50-80nA/0.1 mg / L  Note: Maximum current 3.5uA
Polarization voltage: 0.7V
Zero oxygen: <0.01 mg / L
Calibration interval:> 60 days
Measured water temperature :0-60 ºC