DB 20 stem increment sensor for manual reading. It measures tree trunk circumference using a stainless band in the range from 8 cm of stem diameter. The range of circumference increment is 60 mm.The sensor is composed of two parts – measuring part with scale and spring and from the stainless tape that is delivered as spool with 20 m of tape. When moving...

Logging sensor for long term accurate monitoring of the tree trunk diameter changes in stems larger than 8 cm in diameter.    Non invasive fixing    Increment range 65 mm    Memory and battery capacity up to 5 years