Netilion Smart System for Surface Water

Good water quality is essential for good life quality. Surface water in rivers or lakes is susceptible to various environmental and human influences. Netilion Smart System for Surface Water helps you to automatically monitor the quality of surface water in a smart and easy way.

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liters of water can be polluted by 1 liter of oil

Clean water is a precious good which needs care and protection. And as the water in rivers or lakes has a high impact on human life, we need to observe its quality.

How to manage water quality in a smart way

Water in rivers or lakes can easily get out of balance. Seasonal, environmental and human influences can destabilize the quality of surface water. Since, in a digitalized world, we tend to require more and more digital information, it seems obvious to gather and deliver water quality data in a smart way.

Netilion Smart System for Surface Water enables you to constantly and easily measure the quality of water in rivers and lakes or any other type of surface water. You can see all relevant information on your smartphone.

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Success story: The water values of River Baltschieder are available at any time

Surface Water Monitoring in Baltschieder

"The main advantage is that the measured values can be called up easily from a workstation."

Philipp Kalbermatten
Municipality of Baltschieder

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The challenge:
Up until now, the municipality of Baltschieder has not had access to consistent information on the water quality of the River Baltschieder. This meant that contamination or natural effects were not detected and dealt with in a timely manner.

The solution:
The result is that the measured variables from the River Baltschieder are recorded at 15-minute intervals and displayed online.

Netilion Smart System for Surface Water

Netilion Smart System is an intelligent measuring system for monitoring the quality of surface water. It consists of two components:

  • Box: a single package containing the measuring equipment which you can install at the relevant measuring spots.
  • Smart Systems App: a smartphone app with which you can access the measuring values wherever you are. (For checking measuring data on your desktop PC, you can also use the web application Netilion Value without extra costs.)

Thanks to the intelligent connectivity between the measuring sensors and the smartphone app, monitoring surface water quality is as easy as it has never been before.

You can measure these parameters:

  • Temperature
  • pH
  • Dissolved oxygen
  • Conductivity

Your Solution:
Netilion Smart System
for Surface Water



Netilion Smart System enables you to easily...

Fish in clean water

Ensure Water Quality

With Netilion Smart System for Surface Water you measure relevant water quality parameters with high-end sensors. You simply install the sensors and they will measure constantly. Now you can be sure that the water quality is under your control.

Your advantages:

  • Permanent measurement
  • Sensors for relevant parameters
  • All you need in one package

Map on a smartphone showing installed Netilion Smart System

Check Values on Your Smartphone

The sensors transmit the measuring values safely to your smartphone. So you can easily check the values on your smartphone - no matter where you are. You can also set up and view the measuring location on a map in your Smart Systems App.

Your advantages:

  • Remote value check
  • Visualization and evaluation function
  • Safe storage of the measuring data

Smart System notifications on a smartphone

Receive Alarm Notifications

You are able to set up alarms so that you receive a notification on your smartphone in case of emergencies. This way you save time checking values because you can rely on receiving a message whenever a limit value is violated.

Your advantages:

  • Defining individual limit values
  • Receiving alarms directly
  • Quick action made possible

That's how easy it is: how-to video

Netilion Smart System makes monitoring the quality of surface water easy:

  • You order your Netilion Smart System and receive the box.
  • You can either execute the installation and service of your sensors on your own or let an Endress+Hauser service technician help you.
  • Register online and choose your plan.
  • Then you can download your Smart Systems App and get connected to your sensors with your smartphone.

Your Solution:
Netilion Smart System
for Surface Water



Which parameters are crucial for surface water?

monitoring of conductivity in water


The conductivity measured in water indicates how easily the water can pass electrical current. A high amount of ions (deriving from dissolved salts or inorganic materials) leads to high conductivity level. The pollution of water (e.g. by chemicals) might be a reason of a high conductivity. This makes conductivity an important water quality parameter.

Surface water should usually have a conductivity of 500 to 1000 µS/cm. If these limit values are exceeded, it is recommended to identify the source of the deviant conductivity. In cases of natural reasons, it might be sufficient to prohibit swimming and restrict water withdrawal. If there are unnatural reasons for the increased conductivity, contact nearby factories and start remedy activities.

monitoring of the ph value in water


The pH value indicates to what extent the water is acidic or alkaline. Natural bodies of water usually have a pH value between 6,5 and 8,5. Too high or too low pH values can lead to illness or death of fish, plants and microorganisms. For instance, a pH value of <4 or>10.5 will lead to the death of all native fish species.

If a too high pH value is registered, it needs to be checked whether natural or unnatural sources have caused the deviation. If pollution is the reason for exceeded pH values, contact nearby factories and start remedy activities. In cases of natural reasons, it might be necessary to prohibit swimming and restrict water withdrawal. It might be possible to resolve long-term deviations by adding chalk to the water.

monitoring of dissolved oxygen in water

Dissolved Oxygen

Aquatic life is dependent on a sufficient concentration of dissolved oxygen. Surface water typically has an oxygen concentration of 9.2 mg/l at 20 °C, 14.5 mg/l at 0 °C. However, the level of dissolved oxygen in surface water can change quickly, e.g. due to plankton activities or anaerobic processes. Oxygen depletion can lead the death of aquatic life.

Surface water that is used by human beings should have a sufficient oxygen level. The depletion of oxygen (which for instance might result from algal blooms) can harm plants and animals. Please recommend people not to use the lake or pond in such cases.