SF probe stalk flow sensor

Uses: Direct measurement of plant stem flow to determine plant water consumption (transpiration). 4-pin SF-L probe. For trees larger than 20cm in diameter, it is recommended to use a 4-pin probe. Its two auxiliary pins can offset the error caused by the difference in trunk temperature. The 2-pin SF-G probe sensor is used to measure the trunk with a diameter of 7-20cm. It has no auxiliary needle to offset the error caused by the temperature of the trunk itself.

Technical Parameters


Stem diameter

Needle length

Input voltage

Typical energy consumption



33mm, 43mm, 63mm

(Different lengths can be customized)





Origin: Germany

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