Chlorophyll fluorescence sensor

Overview
Gardin Pulse converts chlorophyll fluorescence signals into real-time plant-level insights, trends and actionable targets for growers. The system measures photosynthetic efficiency to indicate how effectively plants convert light into energy for growth, enabling faster decisions, reduced variability and increased yield potential. Gardin provides continuous plant feedback to identify limiting factors and improve cultivation strategy.

Key benefits

• Autonomous, scalable monitoring of photosynthesis
• Productivity trends and stress alerts before visual symptoms
• Integration with climate computers (Priva, Ridder and others)

How it works
Fluorescence
Gardin measures light emitted by excited chlorophyll on individual leaves to assess photosynthetic efficiency in real time. Photosynthetic changes occur before symptoms are visible.

Assimilation
Photosynthetic efficiency determines the electron transport rate that drives carbon fixation and sets the plant's carbon assimilation capacity.

Growth
Fixed carbon is converted into sugars that fuel growth; higher photosynthetic efficiency accelerates growth and biomass accumulation.

Gardin Sensor
Designed for scalable deployment in glasshouses, polytunnels, indoor farms and research settings. Sensors allow simple installation and continuous autonomous operation.

Key specifications and deployment notes

• Measurement range: up to 2 metres
• Coverage: >10 m² per sensor (approx.)
• Recommended mounting: ~1 metre above canopy
• Connectivity & power: Power-over-Ethernet (PoE) or WiFi; single-cable option
• Self-installation; simple attachment to greenhouse poles
• Climate computer integration available
• Suitable for a wide range of crop species and varieties

Use cases

• Stress detection and risk management: detect drought, disease and nutrient deficiencies earlier to intervene before yield or quality are affected
• Lighting and shading optimisation: measure plant response to identify productive light ranges and avoid over-lighting
• Cultivation strategy feedback: optimise irrigation, nutrition, lighting and other setpoints with faster plant-level feedback

Performance highlights
Gardin detects changes in photosynthetic performance before visible symptoms (customers report detection up to four weeks earlier). Documented deployments report water savings up to 25% and payback periods as short as two weeks.

Technical specifications

• Measurement range: up to 2 metres
• Coverage: >10 m² per sensor (approx.)
• Recommended mounting: ~1 metre above canopy
• Connectivity & power: PoE or WiFi; single-cable option
• Installation: self-installation; simple attachment to greenhouse poles
• Integration: climate computer integration (Priva, Ridder and more)
• Compatibility: suitable for herbs, leafy greens, strawberries, tomatoes, vines and other crop types