ZLW-2 Leaf Wetness Sensor
ZLW-2
The ZLW-2 is a leaf wetness sensor that detects moisture on plant canopies, including fog, ice, rain and dew, using a dielectric sensing principle, and also reports temperature. It is supplied in the UK by MetSensor UK.
- ✓ Dielectric sensing principle detects surface moisture on plant canopies
- ✓ Humidity (wetness) range 0-100% at ±5% accuracy
- ✓ Temperature range -40 to 80°C at ±0.5°C accuracy
- ✓ RS485 Modbus digital output
- ✓ IP65 protection grade
- ✓ DC 12/24V or solar power
Specifications
| Monitoring principle | Dielectric |
|---|---|
| Signal output | RS485 (Modbus protocol) |
| Power supply | 3.6-30V DC |
| Power consumption | 6 mA @ 24V DC |
| Humidity range/accuracy | 0-100%, ±5% |
| Temperature range | -40 to 80°C, 0.1°C resolution, ±0.5°C accuracy |
| Operating temperature | -40 to 85°C |
| Protection grade | IP65 |
| Cable length | 2 m |
| Dimensions | 65 x 13 x 145 mm |
| Interface options | RS485, RS232, WiFi, Bluetooth, LTE |
| Power options | DC 12/24V or solar power |
| Dimension | 65 × 13 × 145mm |
| Power-In Options | DC12/24V / Solar Power |
| Interface | RS485/RS232/Wifi/BT/LTE |
Applications
- Disease and pest prevention
- Spray irrigation control
- Foliar fertilization monitoring
- Detection of fog, ice, rain and dew on plant canopies
- Observing and studying leaf moisture
- Predicting crop spraying timing
- Quantifying water storage
- Monitoring crops for foliar diseases (rust and blight)
Frequently asked questions
What does a leaf wetness sensor detect?+
The ZLW-2 detects moisture on the surface of plant canopies, including fog, dew, ice and rain, which is a key input for crop disease risk models.
How does the ZLW-2 sense wetness?+
Using a dielectric sensing principle across the sensor surface.
What is the accuracy of the wetness reading?+
±5% over a 0-100% range.
What protection grade does the ZLW-2 have?+
IP65.
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