This course covers the basics of online sensor technology for the water industry. The most commonly used online sensor techniques will be explained, including:

• colorimetric analysers
• ion-selective electrodes (ISEs)
• optical sensors
• early warning systems
• biosensors

For each technology type, benefits, drawbacks and operational conditions are discussed. Additionally, real-life examples of these technologies in the water industry will be presented to illustrate their application.

This is a course at fundamental level. It is recommended for all water operators involved in daily water quality monitoring, either in a technical capacity (e.g. responsible for maintenance) or in a supervisory role (e.g. responsible for the interpretation of online monitoring results). The course requires basic knowledge of chemistry and physics (completed secondary education level).