Stevens Hydra Probe II Soil Moisture Sensors Banner
93640-025

Stevens Hydra Probe II Soil Moisture Sensors

Stevens Hydra Probe II Soil Moisture Sensors

Description

The Stevens Hydra soil moisture sensor provides simultaneous measurement of soil moisture, salinity, and temperature using a unique patented design.

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 Shipping on this product
More Views
Your Price
$395.00
Usually ships in 1-2 weeks

Shipping Information
Return Policy
Why Buy From Fondriest?

Details

The Stevens Hydra Probe II soil moisture sensor is an in-situ soil probe that measures 21 different soil parameters simultaneously. The Stevens Hydra instantly calculates soil moisture, electrical conductivity, salinity, and temperature as well as supplying raw voltages and complex permittivity for research applications. A compact, rugged design with potted internal components makes the Hydra Probe easy to deploy and leave in the soil for years with no maintenance.

The Stevens Hydra probe 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 Hydra Probe 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.

The sensor includes built-in RS-485 and SDI-12 outputs for interfacing with NexSens iSIC and SDL data loggers. Sensor cable can be factory-connectorized with NexSens underwater connectors for integration to an SDL submersible data logger sensor port. Data collection options include direct-connect, landline phone, cellular, radio, Ethernet, WI-FI, and satellite telemetry. NexSens iChart Software is a Windows-based program for interfacing both locally (direct-connect) and remotely (through telemetry) to a NexSens data logger or network of data loggers.
Image Part # Product Description Price Stock Order
Stevens Hydra Probe II Soil Moisture Sensors 93640-025 Hydra Probe II soil moisture, temperature, & salinity sensor with SDI-12 interface, 25' cable
$395.00
Usually ships in 1-2 weeks
Stevens Hydra Probe II Soil Moisture Sensors 63646-025 Hydra Probe II soil moisture, temperature, & salinity sensor with RS485 interface, 25' cable
$395.00
Usually ships in 1-2 weeks
Stevens Hydra Probe II Soil Moisture Sensors 93640-050 Hydra Probe II soil moisture, temperature, & salinity sensor with SDI-12 interface, 50' cable
$445.00
Usually ships in 1-2 weeks
Stevens Hydra Probe II Soil Moisture Sensors 63646-050 Hydra Probe II soil moisture, temperature, & salinity sensor with RS485 interface, 50' cable
$445.00
Usually ships in 1-2 weeks
Stevens Hydra Probe II Soil Moisture Sensors 93640-100 Hydra Probe II soil moisture, temperature, & salinity sensor with SDI-12 interface, 100' cable
$545.00
Usually ships in 1-2 weeks
Stevens Hydra Probe II Soil Moisture Sensors 63646-100 Hydra Probe II soil moisture, temperature, & salinity sensor with RS485 interface, 100' cable
$545.00
Usually ships in 1-2 weeks
Image Part # Product Description Price Stock Order
Stevens SDI-12 Xplorer 51139 SDI-12 Xplorer, USB to SDI-12 sensor interface adapter
$450.00
Usually ships in 1-2 weeks
NexSens A50 Junction Box A50 Sensor junction box, includes 4 entrance holes
$349.00
Usually ships in 3-5 days

Related Products

In The News

Northern Kentucky U. Researchers Investigate Tradeoffs Of Green Infrastructure

Green infrastructure installations, like green roofs, permeable parking lots or bioswales, are increasingly popular these days. They are built for good reasons, like decreasing urban runoff or improving a stream’s water quality, among other things. But as with anything, there are tradeoffs to implementing them. A study led by scientists at Northern Kentucky University is evaluating some of the costs and benefits to using one type of green infrastructure in a study considering constructed wetland sites in Kenton County, Kentucky. The research, led by Sarah Stryffeler, an undergraduate student studying environmental science, has looked at multiple sites using gas-catching chambers that have given scientists the means to analyze the greenhouse gases emitted by the manmade wetlands.

Read More

Lake Michigan Yellow Perch Bounce Back After Commercial Ban

For decades, commercial fishing for yellow perch was allowed in southern Lake Michigan. This persisted until 1996 when it was outlawed, giving perch stocks there some time to recover. Scientists had for some time assumed that this fishing ban would not affect the reproduction cycles of the perch quickly and that they were going to need a long time to revert back to the cycles they relied on before commercial fishing ever started. But new research led by scientists at Purdue University finds that maturation schedules of yellow perch in southern Lake Michigan are much more resilient than had been previously thought possible.

Read More

Colorado River Fish Contain Levels Of Selenium, Mercury

Largely seen as pristine and relatively untouched by human activity thanks to its protected status, the portion of the Colorado River flowing through Grand Canyon National Park is anything but, according to recently published research. This is evidenced by high levels of selenium and mercury found in the fishes there. Scientists from many institutions were involved in the years-long work, full results of which have been published in the journal Environmental Toxicology and Chemistry. It was led by the U.S. Geological Survey, but perhaps the contributors from Idaho State University got the best end of the stick. They were looking into the food webs of the river to evaluate concentrations of selenium and mercury gathering in fish.

Read More