HD3901 Dual-sensitive surface leaf wetness sensor

Precision Monitoring for Plant Health Protection

In modern agriculture and floriculture, preventing disease is paramount. The Senseca HD3901 Leaf Wetness Sensor is your first line of defense, providing critical data on surface moisture that can lead to destructive mold and fungal infections. By accurately replicating the thermodynamic and physical properties of a real leaf, this sensor delivers unparalleled accuracy, allowing for perfectly timed phytosanitary interventions. This means you can protect your crops more effectively, reduce unnecessary chemical usage, and ultimately maximize your yield and quality.

How It Works: Advanced Capacitive Detection

The HD3901 employs a sophisticated capacitive measurement principle. Its sensitive surface features a grid-shaped electrode that detects minute changes in the dielectric constant caused by the presence of water. Unlike older resistive sensors that require large droplets to form, the HD3901 detects the smallest beads of dew or rain, providing a faster and more accurate response to changing environmental conditions. This data is crucial for predicting disease windows and protecting your investment.

Key Features and Advantages

• Dual-Sensitive Surface: Measures wetness on both the top and bottom surfaces independently, accounting for different drying rates and providing a complete picture of leaf conditions.
• Exceptional Accuracy & Sensitivity: Capacitive technology detects even the smallest droplets, ensuring precise measurement from 0% to 100% leaf wetness.
• Superior Durability: The sensor surface is treated to resist UV degradation, atmospheric agents, and chemicals found in common pesticides and fertilizers.
• IP67 Protection Rating: The electronics are housed in a completely sealed enclosure, making the sensor dust-tight and capable of withstanding immersion in water, ideal for harsh field environments.
• Ready-to-Use: Factory calibrated for immediate deployment without any need for complex user setup or calibration.

Practical Application and Use

Integrate the HD3901 into your agricultural monitoring system to make data-driven decisions. The dual 0.5-3V analog outputs connect easily to most common data loggers and controllers. Use the continuous data to optimize irrigation schedules, precisely time the application of fungicides and pesticides only when needed (based on actual risk), and conduct detailed climate research within greenhouses or open fields.