Netafim's Flori sensor is a stand-alone device used primarily in the ornamental and landscape markets. The Gopher system is manufactured in Australia. It is a portable soil moisture instrument inserted into 2-inch PVC vertical access tubes. It is approximately 44 inches long, and has a hand held meter associated with the probe. It also is a portable device that uses 2-inch PVC vertical access tubes.
Software also comes with the device.
Sentek's Enviroscan virtually dominates the Australian, New Zealand, and South African market. It is regarded in the irrigation scientific community as one of the most accurate capacitance sensors. One Enviroscan datalogger can accompany 8 probes, each with 4 sensors. The individual sensors plug and play along the probe length and can be adjusted in 4-inch intervals. The Enviroscan comes with software that interpolates the readings from the datalogger.