Description
The sensor consists of a pair of highly corrosion-resistant electrodes embedded in a granular matrix. A current is applied to the WATERMARK to obtain a resistance value. The WATERMARK® meter or monitor correlates resistance to centibars (cb) or kilopascals (kPa) of soil water tension.
The WATERMARK® is designed to be a permanent sensor, placed in the ground to be monitored and “read” as often as necessary with a portable or fixed device. Internally installed gypsum provides some compensation for the effect of salinity levels normally found in agricultural and garden crops.
Specifications:
- Dimensiones: Diameter: 22 mm, Length: 83 mm
- Operating temperature: -40ºC a 50ºC
- Metrics: Soil moisture
- Rank: 0 a 200 cPa
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