Outdoor Leaf Temperature & Moisture Sensor – RS485, 4–20mA or 0–5V
Monitor leaf-surface temperature and moisture continuously with this IP67 outdoor sensor. Its leaf-shaped sensing surface detects small water droplets and provides accurate readings through RS485 Modbus, 4–20mA or 0–5V output
The CWT-LEAF-TH Outdoor Leaf Temperature and Moisture Sensor is designed for continuous monitoring of leaf-surface conditions in greenhouses, nurseries, agricultural research facilities and controlled growing environments.
Its sensing surface imitates the shape and characteristics of a natural leaf. A dense vein pattern of approximately 15 lines per centimetre helps detect small droplets and trace moisture residues across the sensor surface.
Temperature is measured using a high-accuracy thermistor, while leaf moisture is detected through changes in the dielectric properties of the sensing surface. This provides fast, sensitive monitoring of condensation, irrigation coverage, dew formation and leaf-wetness conditions.
The sensor is encapsulated in flame-retardant epoxy resin and carries an IP67 protection rating for long-term operation in humid and exposed environments. It can be suspended from tree branches or installed among plants inside a greenhouse.
Choose from RS485 Modbus RTU, 4–20mA or 0–5V output to connect the sensor to a PLC, data logger, irrigation controller, environmental monitoring station or remote IoT system.
Key Features
- Simulates the shape and surface characteristics of a natural leaf
- Measures leaf-surface temperature and moisture
- Detects small droplets and trace moisture residues
- Dense sensing pattern for improved sensitivity
- Temperature resolution of 0.1°C
- Moisture resolution of 0.1%
- IP67 waterproof construction
- Low-power operation
- Flame-retardant epoxy encapsulation
- Suitable for continuous outdoor monitoring
- Supplied with a 2m cable
- RS485, 4–20mA and 0–5V variants available
