荷兰Hydrion 
Hydrion 多参数水质测定仪
Hydrion利用离子选择电极（ISE）进行分析工作。测量系统包含传感器单元和测量程序：传感器单元包含传感器探头和不锈钢外壳，测量程序具有操作和数据存储功能。用户可独立完成操作，不再需要将样品送往别处检测，节省了时间和经费。
Hydrion开创了一种新的测试概念。所有参数能够同时测量，测量程序还可自动修正所有干扰因子，提高了测量的准确性和可靠性。
由于不使用添加试剂，这种测量系统分析快速且易于操作，不再需要实验室分析技能。
Hydrion develops and produces equipment and software for determining water quality and quantity. Hydrion is partner in international projects and provides services related to water monitoring and management.

Water quality
To determine the water quality Hydrion produces and sells electrodes with or without electronics and a device for multi parameter analysis, the Hydrion-10. The Hydrion-10 measures direct and real time pH, EC, T and seven other parameters. Apart from these standard electrodes, the Hydrion-10 contains electrodes for Redox, Na+, K+, Ca++, NH4+, NO3-, SO4--, Cl- or CO2 (HCO3-). The results can be stored in a data logger, send through an online connection to a computer or connected to steering programs for process management.

The Hydrion-line is a unit for simultaneous or sequential sampling of multiple sources, for example drains, pipes, tanks or canals. The samples can be analysed with a Hydrion-10 or other analytical instruments.

Water quantity
The Venturi measurement ramp measures the discharge in small and broad water ways. The ramp is only 2.5 cm high and forms no obstacle.

For determining the moisture tension in soils (pF) Hydrion produces a user friendly and cheap ceramic osmotic tensio meter.

This equipment can also be connected to a datalogger or computer for storage of the data or for on line presentation of the results.

Software
Hydrion develops tailor made software for processing data, wireless connections and interfaces for linking different steering systems.

Consultancy en service
Hydrion sells equipment and carries out monitoring programs, processes data and presents the results.
Hydrion works closely together with Nieuwland. In cooperation with Nieuwland ICT and Nieuwland Consultancy we offer a broad spectrum of consultancies in water related areas. Activities are for example: monitoring, data processing, Geographic Information Systems and visualisations, management support, urban and rural planning.

A maintenance contract covers the costs of standard maintenance of the equipment and replacement of parts.