hydrosense II-P

handheld soil moisture sensor with insertion pole

overview

overview

The HS2P combines the Hydrosense II soil-water sensor with a strong handle and pole that make it easier to insert the probes into the soil. The lightweight pole allows soil testing without bending over. The HS2P is compact and portable, and the layout of the buttons on the display allows for operation with one hand. Two different probe lengths are available for different types of soil or turf.

 

benefits and features
  • Compact and lightweight
  • Read real-time soil-water content measurements in the field

 

detailed description

Handheld Display

The display consists of a three-inch LCD and four navigation buttons that make changing settings and taking measurements as easy as possible. An integrated GPS tags each measurement with a latitude and longitude.

Zones can be created on the unit, which group measurements together so that average soil moisture can be calculated for an area. The current position and zone are shown on the display so that measurements can be taken in the same zone.

Data storage has been added to allow more than 1000 measurements to be stored on the device. The data can then be downloaded to a PC via Bluetooth for viewing and archiving.

 

soil moisture probe

Two sensor options are offered: the CS658P has 20 cm rods and the CS659P has 12 cm rods. These sensors use an accurate measurement technique and have a rugged design that allows insertion into and removal from hard soils. The rods are secured to their housing with ferrule nuts that provide extra stability during insertion.

 

software

The PC software maximizes the display's data storage capability. The software connects to the display via Bluetooth to avoid the need for extra cables.

The software allows the user to:

  • View data in table and chart views
  • Edit zone positions and sizes
  • Change device settings
  • Export data to CSV to interface with third-party software
  • View zones and measurements in Google Earth

specifications

feature specification
Measurements Made Volumetric water content (VWC) of porous media (such as soil)
Required Equipment HS2P is a complete system.
Soil Suitability Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity.
Rods Replaceable
Sensors Interchangeable sensors; can swap the 12 cm and 20 cm sensors with the reader.
Handle Width 29.2 cm (11.5 in.)
Height 82.3 cm (32.4 in.) handle to bottom of sensor 96.5 cm (38 in.) top of display to bottom of sensor
Pole Width 2.5 cm (1 in.)
Pole Depth 2.5 cm (1 in.)
Weight 1.4 kg (3 lb) with display and rods 1.1 kg (2.4 lb) without display
Display
Display 128 x 64 pixel graphic LCD
Backlight Blue and white LED (brightness adjustable)
GPS Accuracy ±5 m (16.4 ft) typical ±1 ms time with GPS sync
Bluetooth Range ~10 m (~30 ft)
Data Storage > 1000 records (ring memory)
Zone Storage > 100 records
Power Supply 6 Vdc, 4 AA batteries
Battery Life 6 to 12 months (typical usage)
Dimensions 200 x 100 x 58 mm (7.9 x 3.9 x 2.3 in.)
Weight 340 g (12 oz)
Typical Power Consumption of Display
Sleep 20 µA
Backlight Off 2 mA
Backlight at 60% 18 mA
Backlight at 100% 30 mA
GPS Active 35 mA
Bluetooth Active 30 mA
Probe Options
-NOTE- The CS659P and CS658P cannot share rods.
Water Content Accuracy 3% typical (Accuracy assumes solution EC of < 4 dS/m when using the CS658P 20-cm probe.) 3% typical (Accuracy assumes solution EC of < 6.5 dS/m when using the CS659P 12-cm probe.)
Volumetric Water Content Resolution < 0.05%
Volumetric Water Content Range 0% to 50% VWC
Rod Diameter 5 mm (0.14 in.)
Rod Length 200 mm (7.9 in.) for the CS658P 20-cm probe 120 mm (4.7 in.) for the CS659P 12-cm probe
Body Dimensions 100 x 92 x 40 mm (3.9 x 3.6 x 1.6 in.)
Weight 450 g (15.9 oz)

 

manual & docs

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