Our soil moisture sensor exploits the phenomenon that the soil dielectric permittivity depends on the volumetric water content. This phenomenon is widely used in soil moisture sensors. The simplest type of sensor is a capacitor formed by planar or wire electrodes inserted into the soil. Its capacitance is measured at a single frequency in the range 50-150 MHz and by use of soil dielectric models (such as the ubiquitous Topp’s model) the soil moisture is determined. More advanced sensors use time-domain reflectometry (TDR) to determine the average dielectric permittivity for frequencies 200 MHz – 2 GHz. Our sensor determines the dielectric permittivity at multiple frequencies from 50 MHz to 2 GHz which is the foundation of its supreme accuracy and the capability to identify the soil moisture profile.

Our sensor sends the raw measurement data using the LoRaWAN protocol. The data is sent either to a cloud service or to a dedicated industrial computer (in the case when privacy is a concern) where it is further processed and stored in a database. User can access this database at any time through a web application.

The soil moisture sensor provided information that helps to optimize crop irrigation.  It has been shown that precise irrigation, that is irrigation based on soil moisture measurements can increase the crop yield by up to 30% and reduce the water usage by up to 50%. 

Yes, installation is straightforward. Before installing the sensor the soil at the installation spot should be sieved and homogenized. After that simply place it in the desired location in your soil, and you are ready to start monitoring moisture levels immediately.

Absolutely. Our soil moisture sensors can be utilized in indoor gardens, potted plants, and greenhouse conditions, providing versatility for your plant care both indoors and outdoors. You just need to make sure that your pot is at least 30 cm deep and that no roots get between the sensor rods.

The battery life varies based on the usage scenario and environmental conditions. Taking on average 4 measurements a day the battery lasts one year. Of course, at any time it can be recharged through a USB-C connector.

You cannot buy the sensor yet. However, if you are interested in testing, please let us know.