See What Your Plants Actually Feel

The Stomata Camera uses a crop centric approach based on direct plant measurement, measuring leaf and fruit temperature inside the greenhouse to reveal real plant stress, condensation risk, and energy losses that air-based sensors simply cannot detect.

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Trusted by high-tech growers and horticultural
researchers worldwide

Standard Sensors Don’t Tell the Full Story

Most greenhouses still rely on air temperature and humidity to guide climate decisions. But plants do not experience the greenhouse the way sensors do. This disconnect creates blind spots that lead to hidden disease risk, unnecessary energy use, and avoidable crop stress, especially when decisions are not based on direct plant measurement.

  • Rely on Air temperature
  • Missing early Microscopic condensation

Hidden Condensation

Microscopic condensation forms on fruit and leaves long before it’s visible. Without direct plant temperature measurement, fungal disease pressure builds silently while climate data still appears safe.

  • Transpiration (assumed)
  • CO₂ uptake (assumed)

Closed Stomata

Plants close their stomata due to stress even when air conditions seem optimal. This reduces stomatal activity, transpiration, CO₂ uptake, and photosynthesis, without triggering alerts in standard climate control systems.

  • 2 inputs (Air T°, RH)
  • No Plant-confirmed action

Wasted Energy

Heating and ventilation decisions based only on air temperature often overshoot actual plant needs. This results in unnecessary energy consumption without improving plant activity, growth, or crop performance.

Patented Fusion Technology

The Stomata Camera uses patented fusion technology that combines RGB imagery with thermal data in a single device. This enables a crop centric approach through direct plant measurement of leaf and fruit temperature at crop level, delivering insights that are impossible to achieve with traditional greenhouse sensors.

How it works

The Sigrow camera captures multiple plant-level metrics in real time, providing growers with actionable insights.

Capture Thermal & RGB Images

Leaf temperature and plant structure are recorded simultaneously.

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Fuse Images with Calibration

Thermal data is aligned with RGB using a dry-leaf reference for accuracy.

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AI Identifies Plant Parts

Leaves, flowers, and fruit are automatically recognized and separated.

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Analyze Leaf Temperature Over Time

Min, average, and max leaf temperatures are continuously tracked.

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Detect Stress & Support Decisions

Early plant stress is identified to guide precise climate actions.

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See the Difference Sigrow Makes

Complete Plant Intelligence

One camera delivers multiple plant-level measurements in real time.

Leaf temperature

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Leaf Temperature

Direct measurement of leaf surface temperature reveals plant stress, reduced transpiration, early stomatal closure, and risks such as burned leaf edges that air sensors can’t detect.

Fruit Temperature

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Fruit Temperature

Continuous fruit temperature monitoring identifies condensation risk, fruit cracking risk, and microclimate differences that directly impact fungal disease pressure and fruit quality.

Crop-Level VPD

  • Leaf Temp
  • Fruit Temp
  • Crop VPD
  • Stomatal State
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VPD & Relative Humidity

By combining plant temperature with air data, the system measures true VPD at crop level, enabling more accurate climate and energy decisions based on actual plant activity rather than assumptions.

PAR Light

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PAR Light

Integrated PAR light measurements provide essential context for plant response, linking radiation, temperature, transpiration, and CO₂ uptake in a single dataset.

Real RTR (Real Transpiration Rate) is a calculated metric derived from the precise difference between leaf temperature and air temperature. It tells you exactly how much water your plant is evaporating, which is the direct driver of calcium transport and cooling.

The Stomata Camera is plug-and-play. It connects via Ethernet (PoE) or can be used with a 4G gateway. It integrates with major climate computers via API, allowing you to automate screen and vent controls based on real plant data.

Real RTR (Real Transpiration Rate) is a calculated metric derived from the precise difference between leaf temperature and air temperature. It tells you exactly how much water your plant is evaporating, which is the direct driver of calcium transport and cooling.

Real RTR (Real Transpiration Rate) is a calculated metric derived from the precise difference between leaf temperature and air temperature. It tells you exactly how much water your plant is evaporating, which is the direct driver of calcium transport and cooling.

Real RTR (Real Transpiration Rate) is a calculated metric derived from the precise difference between leaf temperature and air temperature. It tells you exactly how much water your plant is evaporating, which is the direct driver of calcium transport and cooling.

More Than Just Hardware

  • Technology only creates value when it’s understood. Our plant scientists help growers translate data into daily decisions that improve crop health, consistency, and long-term performance.
    Rutger Vreezen
    Plant Scientist & Customer Success Specialist
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Sigrow supports growers with onboarding, data interpretation, and ongoing plant-science consultancy. Advisory support is available to ensure insights lead to confident climate and crop decisions.

Talk to a Sigrow Plant Scientist

Ready to See Your Plants Differently?

Request a personalized demo and discover how the Stomata Camera can transform your growing operation.

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