LWS Leaf-Wetness Sensor

Sensitive yet durable, compatible with most Campbell Scientific data loggers

The LWS, manufactured by METER Environment, can detect small amounts of water or ice on the sensor surface for leaf wetness applications. Because the LWS measures the dielectric constant of the sensor’s upper surface, it can detect the presence of water or ice anywhere on the sensor’s surface.

The LWS is designed to be deployed either in the canopy or on a weather station mast. Two holes in the non-sensing portion of the sensor body are provided for attaching the sensor to a pole or branch via twist ties or with 4-40 bolts.

Category:

Benefits and Features

    • Imitates characteristics of a leaf
    • Does not require painting or calibration of individual sensors
    • Detects trace amounts of water or ice on the leaf surface
Measurement Description Dry, frosted, wet
Signal Type/Output Analog voltage
Measurement Time 10 ms
Power 2.5 Vdc @ 2 mA to 5 Vdc @ 7 mA
Output 250 to 1500 mV (millivolt reading relates to moisture state)
Operating Temperature Range -40° to +60°C
Life Expectancy 2+ years (continuous use)
Painting Does not require painting.
Dimensions 12.0 x 5.8 x 0.8 cm (4.7 x 2.3 x 0.3 in.)
Weight 0.14 kg (5 oz) with 4.57 m (15 ft) cable

Brochures: LWS Leaf Wetness Sensor

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Manuals: LWS Dielectric Leaf Wetness Sensor

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