N2O WW Sensor complete_1400x800
Stable, real-time signal
Temperature compensated data output
Only maintenance is a 10-minute calibration every second month

N2O Wastewater Sensor

Measure dissolved N2O with fast response time in the biological tanks of wastewater treatment plants

The N2O Wastewater Sensor delivers a temperature compensated data output to your N2O Wastewater Controller with a response time of less than 45 seconds. You can expect a very stable signal from the sensor. Read more...

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Technical Data
Ordering Information & Concentration Ranges
Manuals & Videos
N2O Wastewater Sensor

Fast responding and reliable nitrous oxide measurements

The real-time signal from the N2O Wastewater Sensor makes it possible for you to implement active control strategies to minimize your plant's climate footprint.

The only maintenance required from you is a calibration every second month. This will take you around 10 minutes. You can check out this instruction video to see how to calibrate the sensor.

N2O Wastewater System

Construction of the N2O Wastewater Sensor

The N2O Wastewater Sensor consists of 3 parts:

Outside: An N2O Wastewater Sensor Body in a robust aluminum alloy which can be unscrewed for easy replacement of the N2O Wastewater Sensor Head.

Inside: An N2O Wastewater Sensor Head.

N2O WW Sensor parts_1400x800

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.
Feature Description
Size Robust design in 44 mm aluminum alloy casing (6063-T6) and black POM acetyl copolymer
Response time <45 sec
Built-in temperature sensor Yes, N2O signal is temperature compensated
Calibration 2-point calibration, every second month
Guaranteed lifetime 4 months
Expected lifetime >6 months
N2O Sensor Head Replaceable
Cable length 5 meter standard | Optional: Extension to 100 m
Known relevant interferences None
Ordering Information
Ordering Information
Product Working range N2O-N Detection limit N2O-N Application
E-N2O Head 0-1.5 mg/L 0.005 mg/L Recommended for most activated sludge systems
E-N2O Head Low Range 0-0.56 mg/L 0.002 mg/L Recommended for low range effluent measurements
E-N2O Head High Range Option 1 0-9 mg/L 0.03 mg/L Recommended for deammonification and other side stream treatments
E-N2O Head High Range Option 2 0-110 mg/L 0.4 mg/L For specialized applications only


Zero point calibration of N2O Wastewater Sensor
Two point calibration of N2O Wastewater Sensor
Exchange of N2O Sensor Head


Kalibration von Lachgas Sensoren - Nullpunkt Kalibration
Kalibration von Lachgas Sensoren - Zweipunkt Kalibration
Austausch eines Lachgas Sensors