Decagon's LWS leaf wetness sensor is standardized, calibrated, and designed to detect wetness (presence and duration) and ice formation right out of the box. No painting, baking, or user calibration required.
Each sensor is precisely factory-calibrated to detect tiny amounts of water and/or ice on the leaf surface. The sensor surface coating is non-hygroscopic, eliminating false wetness detection.
The sensor's thin (0.65 mm) fiberglass construction closely approximates the overall radiation balance of a healthy leaf, so moisture will condense and evaporate from the sensor at the same rate as it would on a normal leaf.
Get straight to the data with the Em50 series of data loggers. Just install the sensor, plug it into the Em50, set the clock and measurement intervals, and start logging leaf wetness data. No programming required.
Compatible with other data loggers (e.g. those manufactured by Campbell Scientific). Some programming is required; sample CSI programs are available on request.
Utah State University's Plant, Soils, and Climate department has set up a full weather station, and use the Leaf Wetness Sensor to monitor surface moisture. See the real-time data: View graph
Part number 40020 (Stereo), 40019 (Pigtail), 40018 (Custom)
|Measurement Speed:||10 ms (milliseconds)|
|Sensor Type:||Frequency domain|
|Output:||320 - 1000 mV @ 3 V excitation|
|Operating Environment:||-40°C to 50°C|
|2.5 VDC @ 2 mA, to 5 VDC @ 7 mA|
|Cable Length:||5 m standard, custom lengths available|
|Cable Connector Types:||3.5 mm "stereo" plug or stripped and tinned lead wires (3)|
|Sensor Dimensions:||11.2 cm x 5.8 cm x .075 cm|
|Data Logger Compatibility
Decagon: Em50 series, ProCheck
Campbell Scientific: CR10X, 21X, 23X, CR1000, CR3000, etc.
Other: Any data acquisition system capable of 2.5 - 5 VDC excitation and single-ended voltage measurement at 12 bit or better resolution.
|EXPECTED LIFETIME:||2 + years of continuous use|
|Warranty:||One year, parts and labor
Phone: 800-755-2751 or