GroSens® system for precision irrigation:

Grodan's wireless, multi-sensor system for substrate growing

Based on professional growers needs for higher accuracy and reliability in monitoring water content (WC), electrical conductivity (EC) and temperature in substrates, GRODAN is now introducing a state-of-the-art innovation: the GroSens® wireless, multi-sensor measuring system.

When GRODAN asked its customers what challenges needed to be overcome to achieve precision irrigation, it quickly became apparent that there was a need to measure WC and EC more accurately and at multiple locations in the greenhouse. “The current WCM meters still work well and are used a lot; however in the past 15 years a lot of technological developments have taken place.” explains Vincent Deenen, Director Marketing and Development at GRODAN. “After intensive research, we have now designed a solution to precisely match the growers needs, the GroSens system”.

The GroSens benefits

The wireless GroSens system enables 24/7 real-time insight into the WC, EC and temperature of the stone wool substrate. It contains multiple sensors that are designed with double the number of measuring points compared to its predecessor, the WCM II. Based on statistically reliable trials, GroSens measures the WC and EC at least 5 times more accurately than existing Water Content Meters (WCM). The fact that there are multiple sensors, and thus more measurement points in the irrigation section, leads to more reliable and representative WC and EC figures. The wireless sensors allow tremendous flexibility in where you can measure in the greenhouse and they are easy to install. The GroSens system is modular; the basic set consists of 3 Sensors and can be extended with more Sensors, to suit each grower’s needs. In short, GroSens is an ideal measuring tool for growers who want to take Precision Growing to the next level.

“The GroSens system, in combination with GRODAN stone wool substrate products and advice, is the best way of achieving optimum results in production and cost savings. Launching this system is another step in the GRODAN Group’s strategy of making Precision Growing possible for growers,” concludes Deenen.


The patented GroSens system will be introduced to the market gradually and will eventually replace the current GRODAN WCM’s. For more information, please visit the GroSens page on the GRODAN website:


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