Tree dendrometer DR series

stemwith data logger

The DR series dendrometers are used for high-precision and continuous measurement of stem diameter changes. These devices are suitable for long-term use in outdoor conditions. Due to their extremely low power consumption, Ecomatik dendrometers are ideal for battery-powered solutions, e.g., in IoT applications. DR dendrometers are specially designed for tree trunks with medium to very large diameters (> 8 cm; or DC3, > 5 cm). DR dendrometers are mounted with one (DR3, DR3W) or two special screws (DR1, DR2, DR1W) anchored in the tree stem. The changes outside the trunk wood correspond to then radial growth and the daily variation of the trunk diameter, which is associated with treewater status. Screw-mounting ensures extreme stability for long-term measurements with limited maintenance options. DR dendrometers are available in five different versions: 1. DR1: with standard mounting frame and measuring range from of 11 mm for species with slow and average growth rates 2. DR1W: hermetically sealed to withstand extreme environmental conditions (under snow cover, underwater, elevated exposure to dust and corrosive agents), with standard mounting frame, measuring range of 11 mm for species with slow and average growth rates 3. DR2: with standard mounting frame and larger measuring range of 25 mm for fast-growing species 4. DR3: quick assembly frame with only 1 screw, suitable for treediameters >5 cm, measuring range of 11 mm for species with slow and average growth rates