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Vertical Dendrometer (DV)


Vertical Dendrometer (DV)

The Vertical dendrometer is developed to determine the vertical changes (not growth) of trees continuously.

Because the trees vary in length according to water status, wind direction and curvature, the vertical change is an interesting measure to assess the water status, mechanical stress, stability and direction of growth of the trees.

In order to cover the different causes (water status, curvature) separately, a parallel measurement is of three directions with three vertical dendrometers necessary 


■ Suitable for large trees (diameter>8 cm)

■ Stability against wind, snow, falling branches and fruits



■ Trunk is injured by drilling (the damage can be minimized by tree resin)

■ Suitable only for larger trees (diameter>8 cm)



■ Complete with 5 m cable

Options / Ordering Information

■ Cable extension (please specify in meters)

■ Installation tools (tree resin, hand drill)

■ Data Logger


Technical specifications

NameVertical dendrometer (DV)
Suitable for tree sizeDiameter >8 cm
Range of the sensor11 mm
Accuracy±1.5 μm ± 0,12% (CR1000 Logger)
Resolution0.2-2.6 μm (dependent on used data logger)
Thermal expansion coefficient of the sensor<0,1 μm/K
Thermal expansion coefficient of wire cable<1.4 ×10-6/K
Operating conditionsAir temperature: -30 - 40° C, air humidity: 0-100%


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Dianjiang Group Limited
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Tel: (852) 3690 1588   Fax: (852) 3690 1586
Email: Dianjiang_HK@yahoo.com.hk   Hongkong@Dianjiangtech.com
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