LWS-L Leaf-Wetness Sensor
Sensitive yet Durable
Compatible with most Campbell Scientific dataloggers
weather aplicaciones soportadas water aplicaciones soportadas energy aplicaciones soportadas gas flux and turbulence aplicaciones soportadas infrastructure aplicaciones soportadas soil aplicaciones soportadas

Overview

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.

Note: The LWS was previously ordered as the LWS-L.

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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

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Detailed Description

The LWS measures the dielectric constant of the sensor’s upper surface. This method allows the sensor to detect the presence of water or ice anywhere on the sensor’s surface.

Specifications

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

Compatibility

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Dataloggers

Product Compatible Note
21X (retired)
CR10 (retired)
CR1000 (retired)
CR1000X
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR300
CR3000 (retired)
CR310
CR350
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR6
CR800
CR850
CR9000 (retired)
CR9000X (retired)

Additional Compatibility Information

Installation

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.

Documents

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