Our systems are based on heat balance method with clear theoretical background. The sap flow sensor output is in terms of [kg hr-1] per plant. At present we offer two different systems; for small diameters (8 to 20 mm) and for large trees with stem diameter over 12 cm. Both systems use variable power and constant dT.

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Sap Flow small stems

  • THB method with variable power (dT 2, 4 or 8 K)
  • Two sensor sizes:
    • 6 to 12 mm
    • 10 to 20 mm
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sap Flow Large icon

Sap Flow large trees

  • For stems from 12 cm DBH
  • THB method with variable power (dT 1, 2 or 3 K)
  • Output in [kg hr-1] per tree independent on radial sap flow profile
  • Input for stem increment sensor
  • Built-in datalogger

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