Libelium waspmote plug & sense Technical Manual page 18

Sensor probes
Humidity and temperature (Sensirion) probe
This probe is designed to avoid sunlight effects and prevent from water and rain, but allowing humidity measurement.
Only the temperature + humidity (Sensirion) sensor includes this special protection.
Figure : Humidity and temperature (Sensirion) probe
Luminosity - LDR probe
This probe is designed to allow sunlight go thought a transparent protection.
Figure : Luminosity probe
Liquid Presence probe (point)
This probe is designed to allow placing the sensor near its application.
Figure : Liquid Presence probe (point)
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