Organic Matter Measuring Device

As water pollution continues to be a growing concern

in situ sensors offer a promising solution for the real-time detection of alterations in water. Hydroquo+, a company with extensive experience in monitoring water quality, has developed monitoring systems that use physical-chemical parameters to detect pollutants and protect natural water sources.

Through potentiometric, polarographic, and optical technologies, Hydroquo+ sensors can quickly detect changes in water quality, allowing for a rapid response to water pollution. This not only helps protect human health but also has positive socio-economic consequences for affected populations.

In addition to detecting pollutants, Hydroquo+ tracking sensors can be used to optimize processes in wastewater treatment plants, aquaculture facilities, and other industries where water plays a significant role. Hydroquo+ commitment to protecting water sources and promoting sustainable practices makes them a leader in water quality monitoring.

Show More

In water quality monitoring, optical and polarographic sensors are commonly used to measure different parameters. Polarographic sensors are often used to measure dissolved oxygen, with a gas-permeable membrane separating the sensor from the water. When oxygen passes through the membrane, it reduces and creates a current proportional to the oxygen concentration. While inexpensive, these sensors require frequent maintenance and a constant flow of water to function properly.

Optical sensors, on the other hand, measure different properties of light depending on the parameter being determined. For dissolved oxygen, fluorescence extinction measurement is used. The sensor membrane contains a luminescent compound that emits red light when excited with blue LED light. The more dissolved oxygen in the sample, the more red fluorescence is quenched. The intensity and lifetime of the luminescence are inversely proportional to the oxygen concentration.

Turbidity can also be measured with optical sensors, through the refraction of light. The light emitted by the LED is scattered proportionally by the turbidity of the sample, and the amount of light that reaches the detector is inversely proportional to the turbidity of the sample.

Finally, pigments such as chlorophyll and phycocyanin can be measured using the fluorescent properties of the pigments. When excited at a given wavelength, the pigments emit light at a longer wavelength, proportional to the number of pigments in the sample. The use of optical sensors in water quality monitoring offers a reliable and efficient method for measuring various parameters.

At Hydroquo+, we take pride in offering bespoke solutions that are tailored to meet the unique needs of our clients. We carefully select the most suitable sensors for each installation, taking into account the characteristics of the water bodies being monitored. Our multi-parametric solutions, such as the aquarist series, offer online measurement of physicochemical parameters and organic matter (optional).

For dammed waters, we have the AquaDam series, which is specially designed for measuring vertical profiles. Our aquaScout series comes in a buoy format with electricity supply through solar panels, making it environmentally friendly and easy to handle.

All of our solutions for continuous measurement of physical-chemical parameters are low-cost, easy to operate, and eco-friendly. They do not require the use of reagents, and they do not generate harmful waste. At Hydroquo+, we are committed to providing cutting-edge technology that helps to protect our environment and promote sustainable practices.


  • Water quality monitoring networks rely on precise and fast answers to detect and track sources of water pollution, including the inflows and effluents of wastewater treatment plants. At Hydroquo+, we offer solutions that are easily integrated into multi-parametric systems, providing accurate and efficient monitoring of water quality.

  • Our solutions are environmentally friendly, as they do not require the use of reagents and do not generate harmful waste. With our technology, you can detect water pollution sources and track wastewater treatment plant inflows and effluents with ease, ensuring the protection of our water resources and the health of our communities. At Hydroquo+, we are committed to providing innovative and sustainable solutions that help to safeguard our environment and promote responsible water management practices.