OTTO-50  SOIL MOISTURE PROBE

Drop in Replacement for 50mm Probes

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Otto-50

The Otto-50  soil moisture probes provide a cost effective alternative for those stuck with the high operating cost of traditional 50mm (2”) format capacitance probes The Otto-50 can be installed in most existing 50mm probe tubes and connect to any SDI-12 compatible telemetry or logging equipment.
 

Flexible Configuration

The probes may be built in lengths of 30cm to 200cm and can be fitted with from 2 to 15 sensors. The sensor elements can be installed at 10cm increments along the probe body and, to save cost, depths can be skipped by inserting spacer boards of 10, 20 or 30cm length. Common configurations are 30cm 3 sensor, 50cm 5 sensor, 100cm 6 sensor and 100cm 10 sensor.
 

Calibration

The Otto  sensors come with a default air-water calibration and users can select  generic soil calibrations for sand, potting mix and clay. Users can perform their own soil specific calibration and save the obtained calibration coefficients on to  the probe. The Otto probes are the first capacitance probe to include soil temperature compensation: allowing users to remove the changes in indicated moisture caused by variations in the dielectric properties of the soil with temperature.
 

More Details

Installation

Removal

Calibration