Soil Moisture Measurement
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Delta-T Devices Soil Moisture Measurement Delta-T Devices

Origins Established in 1971, Cambridge based Delta-T Devices specialises in instruments for environmental science, in particular for soil science, agronomy, plant science, data logging, meteorology and environmental monitoring. Delta-T is a co-operative company, owned and managed by the members who work within it. Co-operative working creates a highly professional environment in which we all strive to make the business successful. We share a high level of commitment to the company and to our customers. High quality products Delta-T is a market leader in soil moisture monitoring, with...

The Delta-T Devices Soil Moisture Range Delta-T Devices has decades of experience in creating premium-grade equipment for soil moisture measurement and recording. Our instruments are built to exacting standards - ensuring ruggedness, longevity, and optimum performance throughout their life. They are used and trusted by researchers around the world and are suited to a wide variety of applications and budgets. The Delta-T Devices soil moisture range includes a wide choice of sensors and meters (pages 3-15) and data loggers (pages 16-23). More information can be found online at www.delta-t.co.uk

The SM150T measures soil moisture and temperature with research-grade accuracy. • Research grade sensor at a great price • Soil moisture and temperature • Dependable moisture accuracy • Robust and buriable Ordering Information Research grade sensor Patented sensor electronics produce a highly dependable sensor with exceptional salinity and temperature stability. The SM150T is built to withstand long term burial - the sensor, connectors and cable are all environmentally protected to IP68. Moisture accuracy is 3% (after soil specific calibration) and the built-in temperature sensor achieves...

Soil moisture with ± 1% accuracy Built-in temperature measurement Simple data logger or meter connection Extendable cable system Buriable - IP68 Exceptional performance The ML3 ThetaProbe’s class leading ± 1% accuracy, stability, build quality, and reliability have made it the preferred choice of thousands of researchers worldwide. The ML3 is easy to use. Simply insert the probe into the soil, connect to your data logger or meter, provide 5-14 V DC at 18 mA and within seconds you can be accurately measuring soil moisture. A built-in thermistor enables the ML3 to simultaneously measure...

The WET Sensor type WET-2 measures three vital soil properties: Water content, Electrical Conductivity (EC) and Temperature.• Moisture and nutrient status in the root zone • Rapid monitoring of growing conditions • Calibrations for many soils and substrates Rapid checks on growing conditions The WET Sensor can easily be inserted into substrates, composts and most soils, enabling growers and researchers to make rapid checks and optimise the uniformity of growing conditions. Each reading takes less than 5 seconds and provides 3 of the most important indicators of root zone health: water...

WET Sensor For portable applications the WET Sensor is used with an HH2 Moisture Meter and is normally supplied as a complete kit - see Ordering Information. Horticultural Applications • Fertigation and hydroponics • Soil salinity • Container-grown shrubs and trees Aplant research intern at I □ n a l W A G E N I NEEN Plant Research International (formerly IMAG-BV), P.O. Box 16, 6700 AA Wageningen, The Netherlands. Web site: www.pri.wur.nl Designers of the WET Sensor & the ASIC which enables accurate measurement of permittivity and conductivity of the bulk soil or media. Saint-Gobain...

• Immediate display of water content • Store up to 1500 readings • Reads ML3, SM150T, PR2, PR2 SDI-12 or WET Sensor Overview The HH2 offers impressive functionality in a compact hand-held unit designed for field use. Readings are displayed on the LCD and can be stored to memory for later download to a PC. Up to 1500 time-stamped readings can be stored. Applications • Reads ML3*, SM150T* and WET Sensors • Reads PR2/6 and PR2/4 Profile Probes (analog and SDI-12) Simple versatile operation The HH2 can be operated with one hand for convenience in the field. Each time-stamped reading includes a...

Most of our soil moisture sensors are available in kit form providing a convenient solution for fast and accurate spot checking of soil moisture. These kits come complete with readout units, accessories and carry cases. SM150 Kit • Complete low-cost kit • ± 3% accuracy The SM150 Soil Moisture Kit is an affordable and easy-to-use tool for obtaining reliable moisture measurements with minimal soil or substrate disturbance. The kit’s low price and simplicity make it ideal for student projects. The kit comprises an SM150T Soil Moisture Sensor, a dedicated readout meter and a carry case. The...

• Soil moisture content - not just trends • Low salinity and temperature sensitivity • Portable meter option for multi-site measurement • GP2 and DL6 Logger options for continuous monitoring Sensing depths (nominal) Dual purpose The unique PR2 Profile Probe can be installed for continuous data logging and can also be used for multi-site, portable measurements with an HH2 hand-held readout unit. The PR2 uses patented* sensing technology, making it possible to measure soil moisture content in a range of soil types and across a wide range of nutrient levels, including saline soil conditions....

Augering and Extraction Kits for optimal Access Tube installation. Profile Probes are used within access tubes inserted into augered holes in the soil - correct installation is vital for accurate measurement of soil moisture profiles. The goal of installation is to produce optimal contact between the soil and the wall of the access tube. The augered holes should be straight, smooth sided and the correct diameter. Delta-T augering kits help you achieve the best possible access tube installation in virtually any soil. However it may not be possible to install an access tube successfully in...