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Soil Moisture And Salinity Sensor

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Product Name:Soil Moisture And Salinity Sensor

Soil Moisture And Salinity Sensor

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HydraProbe Soil Moisture and Salinity Sensor Description
HydraProbe is a rugged soil sensor with patented technology that provides continual, consistent accuracy measuring the three most significant soil parameters simultaneouslymoisture, salinity and temperature.

As the most scientifically researched soil sensor available, it has been depended on by the USDA, NOAA, NASA, leading irrigation companies, and many universities for over 20 years. Its been engineered to be exceptionally rugged and will provide data that you can trust year after year.

HydraProbe to Go
The HydraProbe Field Portable puts the power of HydraProbe in the palm of your hand.
Take soil measurements anywhere, without the effort or expense of setting up a permanent soil monitoring system. Your smartphone communicates wirelessly with the HydraProbe using an ad-hoc wi-fi network created by the HydraProbe Field Portable.

Simply insert the probe into the soil, and tap on the Sample button in the app. The location of each measurement is recorded along with the soil measurement data. All data can be saved and emailed as a .CSV for analysis in Excel.

HydraProbe Soil Moisture and Salinity Sensor TECHNICAL SPECIFICATIONS

MEASUREMENT	ACCURACY	RANGE	RESOLUTION
Real dielectric permittivity (isolated)	< ± 0.5% or ± 0.2 dielectric units	1 to 80 where 1 = air, 80 = distilled water	0.001
Soil moisture for inorganic & mineral soil	± 0.01 WFV for most soils ± 0.03 max for fine textured soils*	From completely dry to fully saturated (from 0% to 100% of saturation)	0.001
Bulk electrical conductivity	± 2.0% or 0.02 S/m whichever is typically greater*	0 to 1.5 S/m	0.001
Temperature**	± 0.3° C	-10°C to +60° C	0.1°C
Inter-sensor variability	± 0.012 WFV ( m³ m^-3 )	n/a

* Accuracy may vary with some soil textures.
** Extended temperature range sensor (down to -40° C) available

Electrical and Communication

	SDI-12	RS485
Power supply	9-20 VDC	9-20 VDC
Power consumption	<1 mA idle / 10 mA active	<1 mA idle / 30 mA active
Cable	3-wire: power, ground, data	4-wire: power, ground, com+, com-
Max. cable length	60 m (197 ft.)	1,219 m (4,000 ft.) Non-spliced: 304.8 m (1,000 ft.)
Baud Rate	1200	9600
Communication protocol	SDI-12 Standard v. 1.2	Custom or open spec
Addressing	Serial; allows multiple sensors to be connected to any RS485 or SDI-12 data logger via a single cable.

Environmental

Operating Temperatures	In soils: freezing to +60° C Standard temperature probe range: -10° C to +60° C Extended temperature probe range: -40° C to +60° C*
Storage Temperatures	-40° C to +60° C
Water Resistance	Tolerates continuous full immersion
Cable	18 gauge (20 gauge for RS-485/analog), UV resistant, direct burial
Vibration and shock resistance	Excellent; potted components in PVC housing and 304 grade stainless steel tines

Physical

Length	4.9 (124 mm)
Diameter	1.6 (42 mm). Optional slim housing version available: 1.4 (35.8 mm)
Weight	7 oz. (200 g). Optional slim housing version available: 6.5 oz. (184 g)
Cable weight	0.86 oz/ft (80g/m)
Sensing volume (cylindrical region)	Length: 2.2 (5.7 cm) Diameter: 1.2 (3.0 cm)

* Extended Temperature Range version available, which can measure down to -40° F (-40° C) for research, cold-climate, high-altitude, arctic applications or any ot her measurement situation where there will be significant below-freezing ground temperatures.