Sigrow Wireless Crop Sensors and Stomata Camera

Sigrow is a Dutch agtech company founded in 2014 out of Wageningen University and based in Ede, the Netherlands. It makes sensors and AI-powered crop monitoring for greenhouses, helping growers apply Plant Empowerment principles by measuring how the plant itself responds to climate and irrigation.

The range includes the Stomata Camera, which fuses RGB and thermal imaging to measure stomatal conductance and leaf and fruit temperature; Air+ and Air Pro+ wireless, solar-powered sensors for CO2, temperature, humidity and PAR between plants; the Pixel plant and climate sensor for VPD; Soil Pro+ and Soil Mini for water content, EC and temperature in rockwool, coco or soil; DrainSense for drainage and weight; and a Net Radiometer for crop energy balance. Data flows to a dashboard with predictive analytics and alerts and integrates with climate computers from Priva, Ridder and Hoogendoorn.

• Stomata Camera: RGB and thermal imaging to measure stomatal conductance and leaf and fruit temperature.
• Air+ and Air Pro+: wireless, solar-powered sensors for CO2, temperature, humidity and PAR, with plus or minus 30 ppm CO2 accuracy on Air Pro+.
• Pixel sensor: monitors VPD, light and air conditions at plant level.
• Soil Pro+ and Soil Mini: substrate water content, EC and temperature for rockwool, coco and soil.
• DrainSense and Net Radiometer: drainage, weight dynamics and crop energy balance in W/m2.
• Climate computer integration: connects with Priva, Ridder and Hoogendoorn systems.

• Strawberry and tomato growers in Da Lat fine-tuning substrate irrigation to cut drain water and fertiliser.
• Melon greenhouses in the Mekong Delta monitoring leaf temperature during heatwaves to adjust ventilation and misting.
• Agricultural research institutes measuring crop responses in variety and climate trials.

• A strawberry trial at Proefcentrum Hoogstraten used 38% less drain water with the Soil Mini.
• Measures plant temperature and stomatal behaviour directly, so climate decisions reflect actual crop stress.
• Plug-and-play wireless sensors install quickly without rewiring the greenhouse.
• A 120-day promise refunds hardware and subscription fees if the grower is not satisfied.

Growers in hot, humid climates struggle with heat stress, high humidity and irrigation errors that standard climate sensors miss. Plant-level sensing is gaining ground as greenhouses in Southeast Asia, including Vietnam's Lam Dong highlands, scale up substrate-grown tomatoes, strawberries and melons and need to save water and fertiliser.

Founded in 2014 in the Netherlands, originating at Wageningen University; headquartered in Ede. Holds Dutch patent NL8545321222B01. Customers and partners shown include Syngenta, Wageningen University and Research, TNO, Mucci Farms and Nature Fresh Farms; integration partners include Priva, Ridder, Hoogendoorn and Blue Radix.