Soil moisture is highly variable. Accuracy from a single site isn't enough to run an experiment. To make good soil moisture measurements, you need research quality probes and you need a lot of them. Decagon's soil moisture sensors are research…
The 10HS measures volumetric water content in a larger soil sample with its 1 liter volume of influence. High frequency oscillation and patented signal filtering deliver excellent accuracy and minimal textural effects; analog output makes it easy to use with other companies' data loggers including those manufactured by Campbell Scientific. This 10 cm long probe works best installed in the field.
Get temperature data integrated with your soil moisture data—at the same location and over the same measurement intervals. Ideal for adding temperature to each node in your network. Serial and SDI-12 communication options come standard with each 5TM, giving plenty of options for integrating into systems manufactured by other companies (such as Campbell Scientific).
Our full-featured soil moisture sensor. Measures volumetric water content, temperature, and electrical conductivity in soil. This three-pronged, 5 cm long sensor is for use in soil only. High frequency oscillation and patented signal filtering deliver excellent accuracy with minimal textural effects. Serial or SDI-12 communication options come standard with each 5TE, giving lots of options for integrating into systems manufactured by other companies (such as Campbell Scientific).