Leaf Wetness Sensor
Many fungal and bacterial diseases affect plants only when moisture is present on a leaf surface. The Leaf Wetness Sensor determines the presence and duration of canopy wetness, allowing you to forecast disease and protect the plant canopy. Because the Leaf Wetness Sensor measures the dielectric constant, droplets do not need to bridge electrical traces for the sensor to detect moisture. The presence of water or ice anywhere on the surface of the sensor will be detected.
Benefits:
- High resolution detects trace amounts of water or ice on the leaf surface.
- No painting or calibration necessary; factory calibration set at standard wetness threshold.
- Low power requirements enable long-term monitoring
(2+yrs. with Em50 logger).
| Specifications | |
| Measurement Time: 10 ms |
Power: 2.5 VDC @ 2 mA to 5 VDC @ 7 mA |
| Operating Environment: 20 to 60°C |
Output: 250 to 1500 mV |
| Expected Lifetime: 2+ years continuous use |
Probe Dimensions: 11.2 x 5.8 x .075 cm (4.4 x 2.3 x 0.029 in) |
| Cable Length: 5 m standard, extension cables available |
|
| Connector Type: 3.5 mm plug |
Datalogger Compatibility*: Decagon Em50, Em50R, Campbell Scientific CR10, 10X, 21X, 23X, 1000, 3000, 5000 |
*not exclusive- Any datalogger which can produce a 2.5 to 5V excitation with approximately 10 millisecond duration and read a volt-level signal with 12-bit or better resolution should be compatible with the Dielectric Leaf Wetness Sensor. Note that pigtail adapters (available from Decagon) are necessary to connect the sensor to a non-Decagon datalogger.