257-L Soil Water Potential Tester

The Watermark 200 provides a convenient method of estimating soil water potential between 0 and -2 bars (typically wetter, or irrigated soils) with a Campbell Scientific datalogger. The model 257 connects directly to the datalogger to estimate soil water potential. If your application requires the use of a multiplexer, please see our 253 probes.
If agricultural practices allow, the sensor can be left in the soil all year, eliminating the need to remove the sensor during fallow periods.
Features
Uses electrical resistance method for soil water matric potential measurement
Measurement range: -200 kPa to 0 kPa
Contains in-line blocking capacitors for applications when multiplexers are not used
Manufactured by Watermark
Specifications
Range: 0 to -2 bars