• manufactured bylogo small
  • sensor for long term accurate monitoring of the tree trunk circumference increment
  • transmitting data to EMScloud Internet application via SigFox network
  • no upper limit in stem diameter
  • non invasive fixing
  • low maintenance and easy installation
  • resolution less than micrometer
  • data visualization, archiving and downloading fully supported by EMScloud Internet application
  • Mini32 software support
  • Check sigfox


Measuring interval 30 min
Sending interval 60 min
Battery lifetime more than 2 years
Circumference measuring range 64 mm
Resolution less than 1μm
Internal temperature accuracy ± 0.3 °C
Protection rating IP68
Weight 450 g
Operating temperature  –40 to 60 deg. C
Operating humidity 0 to 100%

Non invasive fixing by tape

D RL 26 C non-invasive fixing
  • no effect on tree growth
  • integrated value for whole radial profile in measured height
  • almost identical thermal expansion of wood and stainless steel
  • battery replacement possible by keeping the sensor in position on the tree

Precise increment records

Dendrometer data
  • efficient tool for field measurement
  • comprises information of growth, water stress and freezing up of the trunk
  • low maintenance and energy requirements compared to sophisticated measuring systems such as sap flow for instance
  • together with soil water potential measurement it gives realistic picture of drought stress and the tree response to it

Measure trees with different diameter by simple changing the base plate

Increment  01 sensor Dendrometer D RL 26 C base plateE MS  2020  10 D RL 26 C- 26D R 26  40mm

Online communication

Sigfox icon
  • data transmition performed via Sigfox protokol

Online data visualization on EMScloud website

  • measured values clearly displayed in graphs
  • online value agregation and integration
  • alerts about failures and unexpected events
  • view all data in web browsers on different devices
  • fast download in several formats

Mini32 software

Mini 32 P C app
  • graphically oriented software intended for work with long time series
  • automatic lining up of increment records
  • curve fitting and growing parameters calculations
  • fast brief statistics


documentdocument 2 Datasheet
documentdocument 2 Installation manual
documentdocument 2 Battery replacement instructions
documentdocument 2 Upgrade for small diameters

Dendrometer Installation