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Hydra II soil moisture conductivity temperature sensor

Stevens' Hydra probe is designed to measure soil moisture, soil temperature, and dielectric constant. The dielectric constant is directly related to the amount of salt in the soil moisture. Unlike other capacitive sensors, the Hydra probe can measure these three parameters at the same time. High frequency measurement indicates the characteristics of capacitance and soil conductivity, and the temperature of the soil is measured by thermistor while measuring the soil moisture and soil salinity.
The precise sensing area can strongly measure the soil moisture gradient, and the sensor's response time is very fast. When the internal conditions of the soil change, the sensor can quickly sense these changes and then measure them. Sensor measurement does not require on-site calibration, and can be directly connected to the data collector to achieve measurement.

Features
Simultaneous measurement
Soil Moisture
Soil salinity
Soil temperature
Transient sensor response
No calibration
Compact and durable, no maintenance
Can accurately measure dielectric constant, soil moisture and soil conductivity
Compatible with most data acquisition systems and analog inputs

Hydra II soil moisture conductivity temperature sensor

Technical Parameters
Dielectric constant range
1~65
Dielectric constant accuracy
±1.5% or ±0.2
Soil moisture range
0~saturated
Soil moisture accuracy
±0.03
Soil conductivity range
0.01~1.5 S/m
Soil conductivity accuracy
±2.0% or ±0.005 S/m
Soil temperature range
-10~65℃
Soil temperature accuracy
±0.1℃
Operating temperature
0~65℃
Storage temperature range
-40~70℃
Waterproof performance
Can be immersed in water
material
PVC and stainless steel
Output
SDI-12, RS485 (specify before ordering)

Origin: United States



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