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Humidity sensor in the ground Environment

Humidity sensor in the ground

Product Code:Hydra Probe II


Need more Info? (514) 354-2511 - 1-800-463-4363

Description
Stevens’ Hydra Probe II offers a unique advantage over other soil probes by providing an all-in-one, in-situ system that can measure many different parameters simultaneously. The Hydra Probe instantly calculates soil moisture, conductivity, salinity, and temperature as well as supplying the raw voltages and complex permittivity for research applications. The data adds science to soil management for better understanding of the impact soil conditions have on plants and the climate. The objective of the Hydra Probe is to optimize analysis of soil conditions for research studies and for enhanced quality and yield of turf and crops.

Hydra Probe sensing technology has been deployed for over 10 years by the USDA and is used by NASA for ground truthing of satellite based soil imaging. A compact, rugged design with potted internal components makes the Hydra Probe easier to deploy than competing sensors and ideal for remote and harsh conditions. Durable construction makes it possible for the units to remain in the fi eld for many years, maintenance-free.

The defi ned sensing volume allows accurate measurements in regions where there are strong soil moisture gradients, such as near the soil surface. Response time to changing soil conditions is immediate, and calibration is as simple as selecting a soil type (sand, loam, silt or clay). Each Hydra Probe is serial addressable, allowing for multiple sensors to be connected to any RS485 or SDI-12 data logger via a single cable. Sensor data can also be sent directly to a radio modem.

The Hydra Probe uses an electromagnetic signal propagated from the center tine of the probe to measure multiple parameters. The electrical properties of soil can be determined from recorded voltages, which correspond to the refl ected behavior of an electromagnetic wave. On-board software converts the raw voltage to standard units of measurement for each parameter. With a standard database or spreadsheet, managers can view real-time soil snapshots or long-term soil trends.
Benefits

• Instantly measure soil moisture, conductivity, salinity, and temperature
• Optimize soil analysis, watering and fertilization
• Enables measurement of native (undisturbed) soil
• Low risk: ten years of field-proven science
• Measure flow of water, fertilizer from topsoil to sub-root zone
• Performs well in high-salinity soil
• Easier monitoring of remote sites
• Review real-time soil data and trends from the office

Features
• Instantaneous sensor response
• Serial addressable: multiple units on one cable
• Maintenance-free
• Easily linked to wireless systems
• No calibration for mineral soil
• Custom calibration available for peat, grain, and organic soil
• Compatible with most data logging systems
• Digital or analog output
• Compact, rugged for years of in-soil use
Applications
• Long/short-term soil monitoring
• Spot checking of soil
• Golf & sports turf management
• Precision agriculture/fertigation
• Geotechnical measurement
• Weather/climate studies
• Agriculture Research
• Soil & ground water remediation
• Watershed management
• Flood control forecasting
• Forecasting forest tinder conditions

 

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