Soil Moisture Sensor
SOIL MOISTURE SENSOR
Measure the water you couldn't see — with precision.
It works across growing media and delivers stable measurements even when gaps are present around the sensor.
Our proprietary SFDT soil moisture sensor brings innovation to agriculture.
MESSAGE
Understand agriculture. Sense the future.
We measure what is invisible and turn it into data.
We turn what was once invisible into actionable insight for the future.
Reliable sensing is the very force that protects agriculture and supports both global food security and the environment.
We believe this wholeheartedly.
Our goal is not simply to deploy more sensors.
To fundamentally transform the way we farm, and to reliably protect tomorrow for people and the planet.
That is Sensiphia's unwavering mission.
Spatial measurement
It measures the volume-averaged properties of the growing medium between the antennas, so it is unaffected by gaps near the electrodes.
High frequency
By using frequencies above 1 GHz, it reduces the influence of salinity and fertilizer components, enabling more accurate moisture measurements.
Simply insert and measure
Simply insert the tip. With almost no constraints on orientation or contact surface, it works with any growing medium.
Measurement image
Water content comparison
FEATURES
Features of Sensiphia's SFDT method
From "a reference value" to "a basis for decisions."
A proprietary SFDT method unaffected by soil gaps.
Conventional moisture sensors have a fundamental limitation: even the slightest gap between the soil and the sensor can cause measurement variability, leaving them usable only as a rough guide. We applied advanced RF sensing technology to agriculture and developed the SFDT(Spatial Frequency Domain Transmissometry) method for soil moisture measurement. With our proprietary RF (radio-wave) measurement technology, we succeeded in eliminating the influence of gaps in the soil as well as salinity and fertilizer components. Beyond a "reference value," toward a "basis for decisions." This stable measurement enables reliable irrigation control and the next generation of smart agriculture.
FEATURES
Features of Sensiphia's SFDT method
Spatial measurement
It measures the volume-averaged properties of the growing medium between the antennas, so it is unaffected by gaps near the electrodes.
High frequency
By using frequencies above 1 GHz, it reduces the influence of salinity and fertilizer components, enabling more accurate moisture measurements.
Simply insert and measure
Simply insert the tip. With almost no constraints on orientation or contact surface, it works with any growing medium.
Measurement image
Water content comparison
From "a reference value" to "a basis for decisions."
A proprietary SFDT method unaffected by soil gaps.
Conventional moisture sensors have a fundamental limitation: even the slightest gap between the soil and the sensor can cause measurement variability, leaving them usable only as a rough guide. We applied advanced RF sensing technology to agriculture and developed the SFDT(Spatial Frequency Domain Transmissometry) method for soil moisture measurement. With our proprietary RF (radio-wave) measurement technology, we succeeded in eliminating the influence of gaps in the soil as well as salinity and fertilizer components. Beyond a "reference value," toward a "basis for decisions." This stable measurement enables reliable irrigation control and the next generation of smart agriculture.
PRODUCTS
Products planned by Sensiphia
We plan to offer these as products by combining standard components.
(Details are still under consideration and are subject to change without notice.)
Sensor Probe
Usage
Functions
・Soil temperature measurement
Highlights
It can also be used with a wide range of growing media, including coco coir.
Portable Viewer
Usage
Functions
・Soil temperature measurement
Highlights
Irrigation Navi— Cloud visualization & irrigation decision support —
Usage
Functions
・Soil temperature measurement
・Air temperature & humidity measurement
Highlights
Supports multiple moisture sensors.
Irrigation Control— Designed to link with existing control units —
Usage
Irrigation settings can be managed from a smartphone app.
Functions
・Soil temperature measurement
・Air temperature & humidity measurement
Highlights
Supports multiple moisture sensors.
ABOUT
About Sensiphia
Advanced sensing technology, for the future of agriculture.
| Company | Sensiphia, Inc. (株式会社センシフィア) |
|---|---|
| CEO | Toru Saito, Representative Director, President & CEO |
| Founded | February 20, 2026 |
| Address | Front Place Iidabashi 5F, 6-22 Higashigokencho, Shinjuku-ku, Tokyo 162-0813, Japan |
| Business | Development, sales, and support of soil moisture sensors and agricultural support services using soil moisture sensing technology |
NEWS
News
CONTACT
Next-generation irrigation management starts here.
High-precision soil moisture sensing, made possible by our proprietary SFDT method. For details on product features, system configuration, and use cases, please reach out to our team. Bring data-driven irrigation decisions to your fields. Contact us to learn more.