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N2O Wastewater Sensor Head

The N2O Wastewater Sensor Head - Measures dissolved nitrous oxide

The N2O Wastewater Sensor is a Clark-type electro-chemical sensor that measures the reduction of nitrous oxide. The expected lifetime of the sensor is over 6 months and maintenance is down to a bimonthly calibration. 

Due to the N2O Wastewater Sensor’s pointy glass tip, the sensor is kept clean by the friction force of the flow around it and no cleaning is needed. 

Working range of the sensor is between 0 - 1.5 mg/L N2O-N. The detection limit is 0.005 mg/L N2O-N

Replacing the sensor head:

A new sensor head comes with replacement instructions and a tool to remove the old sensor head.


The N2O Wastewater Sensor is a fast responding Clark-type electro-chemical sensor.
New replacement N2O Wastewater Sensor Heads come with easy how-to instructions.
New replacing sensor heads are easily installed. Calibration of a newly installed sensor should be done the following day.
A new sensor head comes with replacement instructions, a calibration kit and a tool to remove the old sensor head.
Placing the tool over the glass tip makes it possible to push out the old sensor head.
Preferably use a hard surface and gloves when pushing out the old sensor head.
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Patent information
This product is covered by the following patents:
Patent issued in China: CN 104937405 A
Patent issued in USA: 9921178
Patent issued in Japan: JP6275744B2
Patent issued in European EP Region: EP2939012B1
Patent pending in several other jurisdictions.