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What People Are Saying

  • Continuous Monitoring for Better Land Management

    "The more we can understand the dynamics of nitrate transport, the better we will able to understand the processes, and then make better informed decisions about managing land to improve water quality."


    Helen Rutter, Senior Water Research Scientist, Lincoln Agritech

  • Timely Data Driving Community Engagement

    "The data we are capturing is fantastic, and a great way to engage our local community. Cheers for the support."

    Edendale Aquifer Group, Southland NZ

  • Consistent and Accurate Results in Real-Time

    "I purchased the HydroMetrics Nitrate GW50 Groundwater Optical Nitrate Sensor last year. I have found the HydroMetrics equipment extremely easy to use - plus it records consistent and accurate results in real-time."

    Val McMillan, Owner - McMillan Drilling

Why HydroMetrics?

20%-30% Lower of Ownership

Accurate nitrate measurement needs to be accessible. The GW50 was built from the ground up to deliver performance at an accessible price point without expensive technical maintenance support. With the GW50, you get more accurate results with simpler operation and less maintenance at a 20%-30% lower cost of ownership compared with similar optical nitrate sensor systems.

Simple Maintenance

The GW50 is designed for DIY operation and easy maintenance with a unique robust protected quartz measurement cell and a slim-line Water-Jet™ cleaning system, reducing cleaning by 50%. Maintenance is easy with a simple de-ionised water 'zero' check and easy cleaning.

Accurate and Flexible

With an accuracy of +/- 5% or 0.3 mg (greater of) N/L (against standards). A recent customer analysis showed GW50™ field results were consistently within ±10% of lab results with an R2>0.975. The study demonstrates that the GW50™ delivers reliable, robust performance. This accuracy, combined with innovative engineering and flexible configurations, makes the HydroMetrics' solution a global leader.

Real-time Results

Get continuous results for the complete picture with easy analysis. The data collected is logged internally and also can be accessed in real-time, resulting in prompt reporting and sharing. The system offers superior data transfer functionality making it more efficient than traditional manual downloading or laboratory processing processes saving cost and time.

If the water is healthy, the land is healthy and the people are healthy.

Nitrate contamination of groundwater, and drinking water, is increasingly becoming an issue worldwide due to the overuse of fertilisers and subsequent leaching. This issue is prevalent in areas of agricultural intensification.

HydroMetrics sensors offer real-time water monitoring and put the tools into the hands of land owners and businesses so they can become environmental guardians of their land and water.

Designed for everyday use by everyday people, technical experience is not needed to operate our sensors. Accurate and affordable, these robust groundwater nitrate sensors are specifically built for environmental, agricultural and industrial uses.

Now in use for over a decade, HydroMetrics is taking the breakthrough GW50 sensor to the world as a real alternative to high cost, high maintenance alternatives.

Easier, robust and more accessible measurement means better nitrate management