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GDot Soil Moisture Sensor

GDot Soil Moisture Sensor


GDot displays soil moisture tension, a measure of how hard it is for the plant to extract water from the soil.

This allows the grower to irrigate only when the plants need it.

Details Code Price Quantity  
GDot Soil Moisture Sensor GDOT $411.00
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  • Suitable for most horticultural crops
  • Low maintenance device
  • Easy-to-read high contrast display


How it Works

  • 7 Yellow Dots - Nice and wet soil - It's really easy for the roots to access water.
  • Falling Yellow Dots - The soil is drying out - The plants are gradually having to work harder.
  • Only a few Yellow Dots - The soil is quite dry - Most horticultural crops are now on their way to experiencing water stress.. Time to Irrigate!


Sensor Type: Granular matric gypsum block
Measurement Range: <10 - 100 kpa
Output Signal: 7 High-contrast flip-dots
Calibration Interval: Calibration not required
Dimensions: 200 x 90 x 50 mm
Weight: 216 g


The GDot can be used in horticulture, vines, vegetables, tree and cereal crops. It can be used under drip, centre pivot, lateral and surface irrigation.


The GDot can easily be read at a glance from up to 15 metres away. GDots are tough, scratch- and UV-resistant and their brilliant chilli-red base prevents them from disappearing into the background of the crop foliage.

The GDot costs little more than a tensiometer with none of the maintenance issues.

The GDot can be installed in minutes with the most unsophisticated equipment. Auger a hole, bury the sensor in the active root zone and hang the GDot from a wire, screw it to a post or mount it on a length of 33mm pipe.

The standard 1.5m cable can be extended so you can fix your GDot to the end of a crop row, outside a fence line or at the edge of a centre-pivot crop, up to 100 metres from the sensor.