Scatter100 is a new wireless datalogging-system which can handle up to 100 sensors. Using the 868-870MHz frequency band it can transmit measurements up to 1000m line-of-sight. Special sensorinterfaces for Dendrometers or Soilmoisture-Sensors are available.

SensorInterface for use with Dendrometers with an output of 0-20kOhm. Extremely precise measurements are possible. No more cables between sensor and Scatter100-Logger!

µLogger for measurement of Dendrometer-signals, resolution: 12 bit, RAM 32 kb (21600 Datasets) - combination of µLogger and Dendrometer gives a resolution of 7 µm. Up to 4 Dendrometers can be connected to one µLogger. Logging interval from 1sec to 12h; powersupply with 1 AA Lithium-Battery (for approx. 2 years). Size/Weight: 8.0 x 6.5 x 2.5cm / 86g. Options: Software, Com-cable, weather-proof box, battery.

D6 - Dendrometer (Tree growth-sensor strain gage clip sensor) for measuring tree circumference. Continuous high-resolution measuring of circumferential variation of trees, Easy mounting without damage of the bark or disturbance of growth, Measuring of daily changes and immediate reaction with an accuracy of 5 µm, Minimisation of the cables friction on the bark and dependence on temperature, Measuring range easily expandable by adjusting of the cable. Sensor: 4-wire full-bridge strain gages; Measuring range: 50 mm circumf. growth without adjustment; Power supply UDC = 5...15 VDC (constant voltage!). Neccessary accessories: Teflon-net and Invar-steel measuring-cable. Incl. 20cm cable with connector.

D4 DIAL-Dendrometer for permanent and automated measuring of circumferential growth, easy mounting, low maintenance and extreme roughness. Sensor: Conductive plastic potentiometer Measuring range: 0 .. min. 75 mm circumferential growth Power supply UB: 5 ... 10 Vdc, stabilised. Neccessary accessories: Teflon-net and Invar-steel measuring-cable. Incl. 20cm cable with connector.

Dendrometer Type DC complete with 2m cable and 1m special wire-cable. For measuring circumference, from 15cm on. Non-invasive, measurement range: 10 mm without re-adjustment; re-adjustment possible. Output: resistance, two or four-wire measurement possible (1 or 2 s/e-logger-inputs).

Dendrometer Type DD complete with 2m cable. For measurement of diameter and thickness of leaves; suitable for stem-diameter of 0.5 to 12cm; non-invasive, measurement range: 10 mm without re-adjustment; re-adjustment possible. Output: resistance, two or four-wire measurement possible (1 or 2 s/e-logger-inputs).

Dendrometer Type DR for radius measurement. Suitable for radius from 8 cm on. The sensor is fixed at the stem by two screws (Diameter=3 mm). Measurement range: 0-10 mm. The measurement range is not limited if using screw adjustment. Accuracy: ±2 µm, Material Aluminum, Sensor Weight: 17 g without cable, Output signal: 1-10 kohm, for Data logger connection 2 single ended channels required. With 2m cable.

Vertical Dendrometer Type DV - for measurement of vertical changes, which are closely correlated with xylem water potentials and water contents. Measurement range: 10 mm without re-adjustment; re-adjustment possible. Stem is injured with 2 screws fixing special wire-cable and sensor. Output: resistance, two or four-wire measurement possible (1 or 2 s/e-logger-inputs). Incl. 2m cable and 1m special wire-cable. 2 sensors needed/tree.

Dendrometer Type DF - for measuring fruit- and vegetable growth; it can easily be mounted on a great variety of fruit and vegetable without hurting it. The sensor is fitted inside a frame and can measure from 0..11cm diameter. Frame size: 18x15x1,5cm, weight frame <52g, sensor 13g, without cable.
Measurement range without re-adjustment: 11mm
resolution: 5µm with 2-channel-measurement, 7µm with 1-channel-measurement
Linearity: +/- 0,5%, Output:     0-50.000 Ohm

DENDRO-LOG 4-channel-datalogger for up to 4 Dendrometer, weatherproof box 180x180x100 mm; power supply: Uv 6Vdc or 12Vdc, Memory for 2500 readings; expandable with 64MB MMC card. Logintervall selectable from 1sec on, incl. C-LOG configurationsoftware: change logintervall, time and set identifer.
Options:
MMC-card
GSM-Modem for wireless data-transmission