The present invention relates generally to the field of soil monitoring systems and in particular a networked wireless data logging system. In one form the invention comprises a sensor network for measuring at least one parameter within a soil body, including at least one first node comprising a subsurface communication module for connection to a first sensor, at least one second node comprising a surface communication module for connection to a second sensor, wherein both said subsurface and surface communication modules being in communication with each other via at least one first network, and wherein said subsurface communication module or said surface communication module acting as a gateway unit for communication with a computing device or processor via a second network.
