Stevens HydraProbe Soil Moisture Sensors
Features
- Instantaneous sensor response with no calibration requirements
- Compact, rugged, zero-maintenance design for long-term deployments
- Easy integration with NexSens data logging & telemetry products
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Stevens Hydraprobe measures 21 different soil parameters simultaneously. The HydraProbe instantly calculates soil moisture, electrical conductivity, salinity, and temperature and supplies raw voltages and complex permittivity for research applications. A compact, rugged design with potted internal components makes the HydraProbe easy to deploy and leave in the soil for years without maintenance.
Electrical Response Parameters
The Stevens HydraProbe design is unique compared to other soil moisture probes because the electrical response of soils can be specified by two parameters - the dielectric constant and the conductivity. The dielectric constant is most indicative of water content, while the conductivity is strongly dependent on soil salinity. Unlike other capacitance-type sensors, the HydraProbe measures both of these components simultaneously. The high-frequency electrical measurements indicating the capacitive and conductive properties of soil are then directly related to the soil's moisture and salinity content, while a thermistor determines soil temperature.
Remote Capabilities
The HydraProbe soil moisture sensor includes SDI-12 or RS-485 outputs for interfacing with external data loggers such as the NexSens X3. Sensor cables can be factory-connected with NexSens UW plug connectors for integration to an X3 data logger sensor port. Data retrieval options using the X3 include direct-connect, Wi-Fi, cellular, and Iridium satellite telemetry.
Select Options
In The News
Climate Change and Microplastics: Monitoring Lake Champlain
Most people go to Lake Champlain for its exceptional views and thrilling boating, but it’s also home to a wide variety of interesting aquatic research projects. From studying microplastics to thermal dynamics of the lake, Timothy Mihuc, director of the Lake Champlain Research Institute (LCRI) at the State University of New York at Plattsburgh (SUNY Plattsburgh), has spent his career studying aquatic ecosystems. As an aquatic biologist, he’s the main investigator on Lake Champlain’s research studies while also managing their grants, employees, and their hands-on buoy work. Over the years, LCRI has received a number of environmental grants that aid in its monitoring research.
Read More
Current Monitoring after the Francis Scott Key Bridge Collapse
On March 26th, according to The Baltimore Sun , a 984-foot, 112,000-ton Dali lost propulsion and collided with a support column of the Francis Scott Key Bridge, collapsing the structure. Soon after the event, search and rescue, salvage crews, and other emergency responders were mobilized after the collision. As salvage efforts progressed in early April, NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) responded to a request for real-time tidal currents data and deployed a current monitoring buoy—CURBY (Currents Real-time BuoY)—into the Patapsco River north of the Francis Scott Key Bridge.
Read More
Soundscapes of the Solar Eclipse: Citizen Science Supporting National Research
On April 8, 2024, millions of people around the world had their eyes glued to the sky to witness a historic cosmic event. The total solar eclipse captured the headlines and the minds of many who became eager to gaze at the heavens as the sky went dark for a few minutes. However, not everyone used their sense of sight during the eclipse, some were listening to the sounds of the natural world around them as the light faded from above. The Eclipse Soundscape Project is a NASA-funded citizen science project that focuses on studying how the annular solar eclipse on October 14, 2023, and the April 8, 2024 total solar eclipse impacted life on Earth. The project revisits an initiative from the 1930s that showed animals and insects are affected by solar eclipses.
Read More
