diameter sensor PDS40P with small datalogger Minikin PTi
intended for stem diameter from 5 to 40 mm
built-in datalogger temperature
resolution less than two micrometers
non invasive fixing
intended for long-term monitoring
low maintenance, easy installation and set-up
large logging capacity and long battery lifetime
infrared wireless data access
Mini32 software support
Non invasive fixing
no effect on tree growth
battery replacement possible by keeping the sensor in position on the tree
Precise stem diameter records
efficient tool for field measurement
comprises information about growth, water stress and freezing up of the stem
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
Measuring range 5 to 40 mm
Resolution 1.24 μm
Measuring intervals 1 min to 4 hrs
Memory capacity with measuring interval 1 hour ca 3 years
Battery life with measuring interval 1 hour ca 5 years
Datalogger internal temperature accuracy ± 0.3 °C
Protection rating IP68
Size of datalogger (diameter x length) 21 x 100 mm
Weight of sensor 160 g
Weight of datalogger 40 g
Operating environment temperature –40 to 60 °C
Operating environment humidity 0 to 100%
