At this year's Fruit Attraction in Madrid, the Dutch company Quantified Sensor Technology presented its latest generation of wireless greenhouse sensors, designed to monitor fertigation, substrate conditions, and crop growth in real time. The system, fully compatible with existing climate computers, aims to help growers save water, nutrients, and time—key factors in today's resource-efficient horticulture.
"We manufacture wireless sensors that monitor how the plants are doing and whether the irrigation system has delivered what was needed" explains owner Paul Kengen. "It's all online. Growers can now considerably reduce greenhouse fertigation checks —this saves time, water, and nutrients."
© Andries Gunter | HortiDaily.comPaul Kengen at Fruit Attraction 2025
A one-stop shop for greenhouse monitoring
Quantified develops a wide range of plug-and-play sensors, including those for temperature, relative humidity, infrared temperature, drain, EC, radiation (PAR), and weight. All sensors connect seamlessly to all major climate and irrigation systems. Also the system can operate independently through the Quantified platform and mobile app, allowing for quick checks of the system's status and measurements.
The company focuses on high-tech and mid-tech greenhouses, particularly in regions with wáter scarcity such as Almería, Murcia, and Morocco, but also offers outdoor solutions for potted plants and ornamental flowers. "We're a one-stop shop for growers," says Paul. "Whether you grow tomatoes, peppers, or flowers, our sensors can be used in any crop and environment."
Smart Gutter: measuring water balance with precision
One of Quantified's flagship products is the Smart Gutter, a complete unit that weighs the substrate mat, measures the amount of water entering and leaving the mat as well as the EC. The data allows growers to calculate plant evaporation rates, a direct indicator of plant activity and yield potential.
"Evaporation means production—and that's what you want," Paul explains. "With the Smart Gutter you know exactly what's happening in the root zone, whether you're growing on coco, peat, perlite, or rockwool. It's also ideal for strawberry containers and potted plants."
"The system's installation takes just a few minutes and requires no cables, making it ideal for growers seeking flexibility. Everything is wireless and battery-powered, ensuring easy setup and minimal maintenance".
"Water scarcity is an increasing challenge for Mediterranean growers, and Quantified's technology offers practical tools to face it. By combining real-time measurements of substrate weight and drainage, growers can fine-tune irrigation to avoid both under- and over-watering, reducing waste and energy use in pumping systems.
"It's great to see growers from North Africa and South America interested in saving water and nutrients, as we have seen in Fruit Attraction. Our goal is to support them with accessible, reliable data."
Expanding across the Mediterranean
Quantified is currently seeking new distributors across Spain, Latin America, and the wider Mediterranean region, aiming to strengthen its presence in both vegetable, ornamental and floral markets. "We're happy to collaborate with partners in high-, mid- and even low-tech sectors," he concludes. "Our systems are versatile, robust, and adaptable to any level of technology."
Voor meer informatie:
Paul Kengen
Quantified Sensor Technology
Langegracht 70 - PLNT
2312 NV Leiden
[email protected]
www.quantified.eu
