Wetec Pte Ltd

Soil Moisture & Temperature Sensors


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PICO-BT

Use PICO-BT with Bluetooth technology to control your PICO sensor and save measurement data on any commercially available PDA with Bluetooth and Windows Mobile. PICO-BT is specially designed for heavy duty applications and functions even in the most extreme conditions. The integrated Class 2 Bluetooth module enables you to easily obtain a range of 10 metres.

The internal rechargeable battery is also the power supply for your PICO sensor. Up to 1500 measurements are possible when fully charged depending on the application profile. A quick look at the 4 LEDs on the face of the instrument always keeps you informed about which actions are being performed at a particular time. Operating PICO-BT couldn’t be easier. The PICO-BT module is immediately ready to use at the touch of a button.

Specifications:

  • * Wireless Class 2 Bluetooth module
  • * Connectable Probes: PICO64, PICO32, PICO-IPH/T3
  • * Up to 10 meter range
  • * Optimal power management
  • * Number of measurements with one charge: > 1500

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TRIME-PICO64 sensor with internal TDR-electronics

IMKO‘s intelligent rod probes are highly sophisticated high-tech devices and extremely robust. A unique feature is their integrated TDR electronics, thus achieving the greatest accuracy and best networking capability e.g. digital network cable lengths of up to 3 km are possible for the IMP-Bus version. In contrast to other methods TRIME®-PICO is less effected by disturbing variables such as temperature or electrical conductivity. An integrated temperature sensor gives valuable additional information.

For in situ monitoring of volumetric moisture in soils and other porous materials. The small measuring volume permits high spatial resolution. Burying capability for both horizontal and vertical orientation. Burying capability for both horizontal and vertical orientation. Due to its mechanical robustness TRIME®-PICO64 is recommended for mobile use together with Bluetoothmodule PICO-BT.

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TRIME-PICO32 sensor with internal TDR-electronics

IMKO‘s intelligent rod probes are highly sophisticated high-tech devices and extremely robust. A unique feature is their integrated TDR electronics, thus achieving the greatest accuracy and best networking capability e.g. digital network cable lengths of up to 3 km are possible for the IMP-Bus version. In contrast to other methods TRIME®-PICO is less effected by disturbing variables such as temperature or electrical conductivity. An integrated temperature sensor gives valuable additional information.

For in situ monitoring of volumetric moisture in soils and other porous materials. The large measuring volume is particularly suitable for applications in heterogeneous and skeletal media. Burying capability for both horizontal and vertical orientation. Due to its mechanical robustness TRIME®-PICO32 is recommended for mobile use together with Bluetoothmodule PICO-BT.

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TRIME®-PICO IPH/T3 for accurate measurements of soil moisture profiles

The intelligent and compact TRIME-PICO IPH/T3 sensor is a measurement devices for continuous and non-destructive determination of volumetric soil moisture. It is designed for mobile field use and can be connected to a PICO-BT Bluetoothmodule or a data logger (globeLog or any analogue data logger) or a PC for monitoring and data logging purposes.

The measurements are performed from within TECANAT plastic access tubes which can be left in the soil. The tubes must be installed prior to the taking the measurements by using a specially developed drilling set. The system enables cable lengths of up to 25m. The intelligent, automatic TDR-curve reading electronics is housed in a robust and waterproof (IP-68) PVC-cylinder, withstanding even the toughest demands of permanent field use. The low power consumption of 8mA stand-by and 100mA during the 2..3-second measuring period conserves your power resources on site. Features are a RS485/V24 interface for both an external power supply (7V..24V/DC, 100mA) and connecting the PICO-BT Bluetoothmodule or a PC as well as an 0..1V or 0(4)..20mA analogue output for interfacing external devices e.g. datalogger.

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TRIME®-FM

The TRIME-FM is the standard field measuring device for volumetric moisture in porous materials. The broad range of applications in even the most saline materials is without equal.

The intelligent automatic TDR-curve reading electronics are arranged in the robust and waterproof (IP 67) aluminium housing, withstanding even the highest demands of all-day field use.

Its speed and easy push-button operation is unsurpassed. In less than 10 seconds, the water content is shown in % by volume, TDR-level (as a measure of salinity). The data is displayed clearly on a clear 4-line LCD panel.

Engineered to allow maximum flexibility and extension potential, a wide variety of probe types can be connected to the FM-device. A built-in EEPROM in the probe connector case stores all probe parameters such as type and cable length.

The TRIME-FM2 version is designed for the 2-rod probes and the FM3 version for all other TRIME probe types. Every probe must be adapted to the FM prior to use. 2-rod probes are not compatible with FM3 versions and vice versa.

The TRIME-FM has a RS232/V24 for an external power supply (7..15V/DC, 250mA) and connection to a PC. The 0..1V analogue output allows optional connection to external devices such as dataloggers


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P2 Rod probes for TRIME®-FM2

IMKO offers high-quality 2-rod probes of different dimensions for the most varied measuring applications. The length of the P2 probe is 10cm and 5cm for the P2D. P2Z, P2G and P2GMR has 16cm lenght. The arrangement of the rods can be linear or triangular, with a rectangular or round probe body. All rods are PVC-coated to obtain best measuring results even in saline materials (bulk soil electrical conductivity up to 2dS/m). For very high salinities, special high-conductivity-probes (C-versions) are available. To take measurements, the probes are simply inserted into the sample material.

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P3 Rod probes for TRIME®-FM3

IMKO offers high-quality 3-rod probes of different dimensions for the most varied measuring applications. The standard length of the P3 probe is 16cm. P3S has a length of 11cm. The arrangement of the rods can be linear or triangular, with a rectangular or round probe body. All rods are PVC-coated to obtain best measuring results even in saline materials (bulk soil electrical conductivity up to 2dS/m). For very high salinities, special high-conductivity-probes (C-versions) are available. To take measurements, the probes are simply inserted into the sample material.

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TRIME®-T3 - The amazing instrument for remote field locations

IMKO was the first manufacturer of TDR measuring techniques to offer a TDR tube access probe especially designed for water content profiling. For the first time ever, the rapid, routine and non-destructive measurements of water content profiles is possible without the use of hazardous radioactive materials. The tube probe consists of a cylindrical PVC-body, which has four spring-mounted aluminium plates as TDR wave guides on opposite sides. The measurements are performed from within TECANAT plastic access tubes which can be left in the soil. The tubes must be installed prior to the taking the measurements by using a specially developed drilling set. The maximum available length of probe cable and tubes is 3 m.

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HD2

The IMKO HD2 - measuring the soil moisture content, the soil conductivity EC, and the level of salt contamination can now be performed as fast and easy as never before! Within two seconds, the moisture content value, the temperature, and the soil conductivity EC are displayed on the clear display. The probe TRIME-PICO64 measures with the new TRIME®-radar technology (Time-Domain-Reflectometry).

Height 36mm
Width 64mm
Length 150mm
Weight (with accumulator) app. 437g
Power Consumption Power Down ca. 35μA
Idle

- Background Illum. OFF
- Background Illum. Max

ca. 26mA
ca. 56mA
Sonde eingeschaltet ca. 100mA
Measurement ca. 350 mA
Measurement per Charge

20°C / Background Illum. Max
Mode – Continuous Measurement

ca. 5000
Connectable Sensors PICO64, PICO32, PICO-IPH
Storage Temperature -30°C up to 80°C
Operating Temperature -20°C up to 70°C
Charging Temperature 10°C up to 30°C
Charging Voltage Nom. 12V, Max. 15V, Min. 12V
Charging Current ca. 1A
Charging Time At exhaustively discharged accumulator. 2h
Accumulator Ni-MH (4 x 1.2V) (AA), 2000mAh, >1500 Measurements
Physical BUS RS485
Bus-Protocol IMP-BUS-Protokoll II
IMP-Bus Port Settings 8 Data Bits, 2 Stopp Bits, Odd Parity

 


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TRIME©-EZ

For in situ measuring of volumetric soil moisture. The large measuring volume is particularly suitable for applications in heterogeneous and skeletal media. Use TRIME®-EZ mobile or bury it in horizontal or vertical orientation.

TRIME®-EZ is available with rod lenght 160mm. Special length on request!

Available accessories: Preboring Set, Spare Rods, RS-232/V24

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TRIME©-IPH/T3

TRIME®-IPH/T3 is operated by the TRIME®-HD at the touch of a button. The intelligent, automatic TDR-curve reading electronics is housed in a robust and waterproof (IP-68) PVC-cylinder, withstanding even the toughest demands of permanent field use.

Measurement of soil profiles in 18cm increments to a depth of 3 meters in any number of tubes

Available accessories: Auger Set, Soil Anchors

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PICO-PROFILE

Accurate Moisture and Salinity Measurement in selected Soil Profiles - with the latest TRIME®-Radar Technology

 

 

Power supply 7V..24V-DC
Power cunsumption 100mA @ 12V/DC during 2...3sec. of measuring
Moisture measuring range 0..100% volumetirc water content
Accuracy
(in % volumetric water content)
±2%
Repeating accuracy ±2%
Coductivity measuring range ECw 0...>20dS/m
Measurement volume 1000ml
Operating Temperature -15°C..50°C (extended temperature range on request)
Calibration Selectable calibration curves:
  1. Standard calibration (soil ±3%)
  2. Sand
  3. Clay
  4. Loam
  5. Dielectric Permittivitiy
Probe body waterproof sealed PVC (IP67)
Size 200 x ø40mm
Access tube Tecanat &oshlash;44mm, max. 3m length
Spacer between two
PICO-T3P segments
PVC &oshlash;32mm, max. 2m length and can be variably cut to the desired length
Interfaces IMP-BUS
RS485
Cable 1,5m to 5m cable with 7-pin female connector

 

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SIS Smart Irrigation Sensor

Granular matrix sensor with linear output signal.

The SIS is a combination of the well-known Watermark(R) granular matrix soil moisture sensor type 200SS and a special amplifier which offers a fully linearised and temperature compensated DC-voltage output signal. The amplifier uses a new, patent pending technique for the accurate measurement of the sensor element.

The linear voltage signal reduces the efforts for the electronic measuring equipment and cable connections.

The temperature compensation directly picks up the soil temperature. Thus, the otherwise problematic temperature difference between logger and sensor is avoided.

An extended version features a programmable digital alarm signal for irrigation issues and a serial interface for bus linking and temperature read-out.

NEW: integrated temperature sensor with improved accuracy of ±0.1degC

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Th2 Soil Temperature Probe

The durable, water proof temperature probe for soils, fluids, gases.

The thin body and sharpened tip reduce the soil disturbance when installed and ensures a good thermal contact to the soil. A heat conducting filling inside improves the thermal conductivity from the casing to the probe - for a fast response punctual temperature pick-up and minimised cable temperature influence.

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Th3 Soil Temperature Profile Probe

To measure the temperature profile in soils in six fixed depths.

Inside a tube made of glass-fibre reinforced plastic (GRP) 6 temperature sensor elements are placed in different depths (see figure). Each sensor element has direct contact to a 1 cm high stainless steel ring which is embedded into the tube. This ensures that each sensor has direct contact to the soil.

The 6 sensors are placed in the depths 5, 10, 20, 30, 50 and 100 cm according to the requirements of the WMO.

The probe is completely inserted until the top of the tube is on a level with the ground surface. The probe�s cable will exit the tube in a depth of 8 cm and should be buried completely below the ground surface. This prevents that the cable picks up the ambient temperature and readings are falsified. The Th3 cable is inserted in a plastic protection tube to prevent rodent bites. Connecting cables should also be inserted in protective tubes.

The standard version Th3-v has analogue output signals 0 to 1 V corresponding to -20 to +50°C. Each depth requires an individual logger channel, thus 6 channels need to be available. Note that supply minus is conducted through the cable shield. The Th3-v can be connected directly to the PR1/2 plug of the DL6 6-channel logger.

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Soil Moisture Meter

The Model 5910A Soilmoisture Meter is simple, relative scale designed for portable use in making rapid readings of Model 5201F1 Gypsum Blocks. Make measurements in a matter of seconds. Fits in a pocket and the standard batteries keep it going for years. A real easy solution for keeping track of soil moisture conditions in a vertical profile and not breaking the bank.

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KS-D1

Specifications:

  • Range: 0.1 to 15 Bars Tension
  • Display: 3 1/2 “ Digital LCD with 0-100 Arbitrary Scale
  • Size: 2 3/4” x 4 3/4” x 1 3/4”
  • Weight: 8 oz.
  • Battery: 1-9V
  • Carrying Case: included

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GB-1 Gypsum Blocks

The KS-D1 Digital Soil Moisture Tester, used with the GB-1 Gypsum Soil Blocks, make up a valuable system to monitor the soil moisture available to the plants.

The blocks are made of gypsum, cast around two concentric, stainless steel electrodes. They are manufactured under controlled conditions to obtain a maximum degree of uniformity and fast response to soil moisture changes. The GB-1 measures 7/8” dia. x 1 1/8 “ in height. It is the most widely used sensing unit, easy to install and especially suited for extensive sampling of soil at various depths.

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Gypsum Blocks and Watermark

The soil moisture meter can be used in combination with soil moisture blocks. The soil moisture content is determined by measuring the resistance between two electrodes inside the gypsum blocks. The condition for reliable measurements is the optimal contact between sensor and soil. The gypsum blocks are permanently buried in the soil at the desired depth. Once buried there the blocks have a life of 3 to 5 years (depending on the type of soil). The meter is practical and is constructed in sturdy synthetic material. It has a measuring range of 0 - 100% for 3-100kPa. It is a system that provides an indication as to when irrigation is required. To achieve a series of soil moisture measurements the sensors can be connected to a datalogger.

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Trase

The Trase system is a complete (modular) measuring instrument for measuring and storing moisture data applying the TDR-technique. The open system allows for different cards to be built-in and makes the instrument suitable to meet future requirements. The instrument can be supplied in two different designs, with or without built-in multiplexer controller card. The meter features a measuring range of 0 - 100% volume percent moisture and is supplied inclusive wave guides, connector, battery and charging equipment.

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Soil Moisture Sampling

Soil moisture sampling is the sampling of soil moisture in the unsaturated zone of the soil. there are mobile systems and setups with a permanent location for continuous sampling. Depending on the purpose of the research it is possible to select between samplers in which the sampling is done via a thin pes tube or via ceramic, glass or plastic cups. All samplers are available in various diameters and designs. With these soil moisture samplng systems the soil moisture is extracted directly and undiluted from the soil.

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Thetaprobe

The Thetaprobe soil moisture sensor measures the soil moisture volume percentage by applying the Frequency Domain technique. The Thetaprobe measures the soil moisture volume percentage by measuring the changes in the dielectric constant.

The sensor is able to measure within a measuring range of 5 - 55 volumetric moisture content with an accuracy of 5% with standard calibration and only 2% with soil specific calibration.

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Mini Trase Kit

The MiniTrase uses Time Domain Reflectometry (TDR) to measure instantaneously the volumetric water content of soils and other moist media. A variety of connectors and waveguides for depth measurements ranging from 15 cm to 70 cm are available, and can be used in a portable manner or permanently installed for periodic moisture monitoring. The volumetric moisture content is displayed on the Palm terminal, and the graph of the TDR pulse can also be tagged for identification and stored for later viewing and analysis on the PC. All stored data can be transferred either by hotsyncing the Palm to your PC or via an RS-232 port connection from the MiniTrase to the PC. The MiniTrase unit is designed for rugged field use and is environmentally sealed to prevent damage to sensitive electronic components.