Continuous Sensing, Dependable Results

There was a time when farmers planted and prayed. They tried to protect their plants from dangers they could see with the naked eye and hoped for the best for those out of sight and out of control. But all dangers are not that easy to perceive…

  • Plant temperature & VPD (kPa).
  • PAR (µmol/m2/s), DLI (mol/d).
  • Air: Temperature (ºC), Relative humidity (%),


    Absolute humidity (g/m3), Dew point (ºC).


  • Solar powered, lithium battery, forced ventilation.

Sigrow sensors complement human senses to measure what the eye can’t see, optimising the microclimate of your plants to ensure optimal growth.

Pixel The Greenhouse Growers’ all-in-one balancer

Pixel is the modern grower’s watchdog keeping a close eye on all that goes on inside the plant and at the surface of the leaf as that’s where all the magic happens. It’s an all-in-one canopy-to-root device that helps you monitor and maintain a state of balance in your plant.

Are your plants screaming out of balance and you can’t hear them? Take the guesswork out of your growing decisions and switch over to Sigrow Sensors.

The Wait is Over with Real-Time Monitoring




With Pixel you can monitor progress in real-time, make data-driven decisions and get measurable results immediately rather than having to wait till the actual harvest time to see if your “green thumb” was on point – or not!


The Science at Work:




Pixel collects microclimate data by creating a 15° cone of sensing above a plant and measures different variables within that area.


It measures PAR (light useful for photosynthesis), and VPD Leaf at the leaf surface, along with other microclimate variables like plant and air temperature, dewpoint, RH (relative humidity), and AH (absolute humidity).

Wondering what the scientific variables mean?

  • Collects data on crucial microclimate variables to maintain balance and regulate temperature, stomatal opening, nutrient uptake, and more. [1] [2] [3] [4]
  • Optimize lighting conditions, leaf temperature, and dew point for maximum plant growth and prevent condensation-related issues.
  • Continuous sensing eliminates midnight runs to check on plants.
  • High quality + quantity yields with reduced fungal infections like botrytis.
  • Automate the control of your microclimate.
  • Dependable, uniform yields thanks to data-driven decisions.
  • Machine-to-machine communication.
  • Dedicated, user-friendly app to monitor your plants’ microclimate.
  • Alarms to notify you when the plants’ microclimate is out of balance.
  • Amsterdam-based Cloud Storage by Sigrow.
  • Discovery team visits for sensor installation, data analysis, and solution suggestions.
  • On-call plant scientists for a tailored experience.
Built with Sustainability and Precision in Mind




The Pixel is an eco-friendly, wireless sensor powered by solar panels and a durable lithium battery to reduce operational energy consumption and negative environmental impact. It’s force-ventilated so gives highly accurate readings for humidity and temperature.


There’s no ambiguity left about what is going on with your plants once you have a Sigrow Pixel setup monitoring and controlling the microclimate.

Stay Ahead of the Competition



Gone are the days when growers depended on intuition alone to make decisions. Modern growers and their clients both need dependable results and uniform yields. Take the cut-flower industry, for instance where uniform flower size and colour are very important. To achieve this, growers need to make informed decisions based on scientific proof which is possible only with sensors.


Happy Customers!

LG Flowers is a commercial cut-flower grower. Multiple Pixels helped LG Flowers detect and solve a botrytis problem in their gerberas. Their setup included one Stomata Camera System, one Net Radiometer System, two Pixels, two Air+, and one Soil Pro+.

Discover more from scientific research:

  1. “A vapor pressure deficit effect on crop canopy photosynthesis” by W.T. Pettigrew
  2. “Plant responses to rising vapor pressure deficit” Grossiord et al
  3. “Steering of Fogging: Control of Humidity, Temperature or Transpiration?” C. Stanghellini and F. Kempkes, Wageningen UR Greenhouse Horticulture
  4. “Minimizing VPD Fluctuations Maintains Higher Stomatal Conductance and Photosynthesis, Resulting in Improvement of Plant Growth in Lettuce” Takayasu Inoue et al