Manual Band Dendrometer DB20

Manual Band Dendrometers or increment gauges are used extensively in commerical forestry and forest research. They are a very reliable and low cost method of accurately measuring and monitoring tree growth rates. In many applications tree growth rate data is sufficient on its own such as in commercial forest mensuration. Tree growth rate data can also be usefully combined with sapflow data to correlate water use with tree growth. If you wish to compare diurnal stem fluctations and correlate this against diurnal sapflow patterns it is recommended that you consider one of ICT International’s continuous logging dendrometer options.

Operating Instructions

The DB20 band Dendrometer uses a hook at the end of a fixed scale and a second hook soldered to the end of the measuring spring on the sliding scale. The steel band tape is inserted into the end of the first hook and wrapped around the circumference of the tree. The end of the steel band tape is then cut and inserted into the end of the second hook on the sliding spring scale, making sure to adjust the measurement scale to zero before bending the tape to hold the dendrometer in position. As the tree grows the sliding spring scale will extend along the fixed scale and increases in diameter can be manually read in 0.1 mm increments.

Features

Low cost
Accurate laser-printed scale
High resolution
Reusable with new tape
No upper stem diameter limit
All stainless steel components

Specifications

Minimum Stem Diameter	8cm
Increment Range	50mm
Resolution	0.1mm
Strength	5 to 15N
Weight	10g
Tape Spool Length	15m
Tape Spool Width	12mm

Ordering Information

DB20	Manual Band Dendrometer
DBTAPE	Dendrometer tape 15m spool

Download Manual Band Dendrometer data sheet (60K PDF)