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Soil Moisture Sensors

Cutting-edge, digital, true time-domain reflectometer (TDR) soil moisture sensors for water and fertilizer conservation and agricultural research. SDI-12 compatible. Need Help in choosing the best sensor for your need? Check out this Sensors’ comparison page   Choose from a wide variety of Acclima TDR sensors. These sensors report the following:
  • Volumetric Water Content
  • Soil Temperature
  • Air Temperature
  • Permittivity
  • Bulk Electrical Conductivity
  • Pore Water Electrical Conductivity

Acclima Sensor Reader Kit (SDI-12)

This package includes the Acclima Sensor Reader, capable of reading any Acclima SDI-12 soil water content sensor, displaying the readings, and, if it’s a ‘Waveform Capture’ sensor, recording and displaying the waveform. Additionally, the kit comprises a sturdy carrying case, a 32 GB thumb drive, a digital True TDR-315H soil water content sensor with Waveform Capture, terminated with an M12 connector, and an international power adapter kit for charging the unit. Click here to learn more or contact us to place a bulk order.

TDR-315N Sensor (SDI-12) (New!)

Introducing Acclima’s Soil Smart sensor, a fully integrated digital TDR soil moisture sensor that boasts unparalleled accuracy and remarkable repeatability across various soil types, including potter’s clay. Demonstrating exceptional performance, it stands unmatched by any other soil moisture sensor available in the market. Representing the inaugural release of Acclima’s Soil Smart sensors, this innovative technology allows for waveform capture, providing valuable insights into soil moisture dynamics. Click here to learn more or contact us to place a bulk order.

Digital True TDR-310N Sensor (SDI-12)

The TDR-310N represents an evolution from its predecessor, the Acclima TDR-310L. Noteworthy enhancements include a high-voltage waveform output, rendering it particularly effective for measurements in soils with high electrical conductivity. However, it consumes more power compared to the TDR-310H variant. As a fully integrated time domain reflectometer, it excels with ultra-fast waveform generation and digitization capabilities. It incorporates a precision 5 pico-second resolution time base, alongside sophisticated firmware for waveform digitization and analysis. This enables authentic-time domain analysis of soil-propagated waveforms, making it an invaluable tool for precise soil moisture measurement and analysis. Click here to learn more or contact us to place a bulk order.

TDR-310W Sensor (SDI-12) (New!)

Introducing a fully integrated digital TDR soil moisture sensor from the Soil Smart series, designed to excel in diverse soil types and soilless media. Engineered with 10 cm waveguide rods, it seamlessly integrates with rockwool cubes commonly used in greenhouse settings. This sensor is optimized to deliver accurate and reliable soil moisture measurements, offering versatility and precision for agricultural and horticultural applications..

Click here to learn more or contact us to place a bulk order.

Digital True TDR-305N Sensor (SDI-12)

Introducing a fully integrated TDR soil moisture sensor engineered to provide precise measurements of Volumetric Water Content (VWC) and Bulk Electrical Conductivity (BEC) or Plant Water Electrical Conductivity (PWEC). With a rapid 300 pico-second rise time, it enables detailed waveform analysis, offering insights into soil moisture dynamics. This sensor is specifically designed to withstand high Electrical Conductivity (EC) levels during readings, ensuring accurate results even in challenging soil conditions. Click here to learn more or contact us to place a bulk order.

Digital True TDR-315H Sensor (SDI-12)

A fully integrated digital TDR soil moisture sensor that sets a new standard for energy efficiency within the N series. Despite consuming only a fraction of the energy compared to its counterparts, it maintains a remarkable 150 pico-second rise time, ensuring exceptional accuracy in moisture measurement. However, it’s important to note that the 315H is not suitable for soils with high clay content or bulk Electrical Conductivity (EC) levels exceeding 1800 µS/cm.
Click here to learn more or contact us to place a bulk order.

Digital True TDR-310H Sensor (SDI-12)

Derived from the popular Acclima True TDRs family of devices, this digital soil water content sensor features a unique circular form factor. This design feature allows for a seamless connection to 1″ PVC pipe (Schedule 40) or insertion into an access tube as small as 1.25″ (Schedule 40 PVC), allowing it to be precisely placed in the soil at specific depths. Click here to learn more or contact us to place a bulk order.

TDT Soil Moisture Sensor (SDI-12)

Used worldwide, this TDT soil water content sensor accurately measures VWC, Bulk EC, and temperature. Temperature accuracy is within 0.5˚C. Click here to learn more or contact us to place a bulk order.
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  • Acclima, Inc. 1763 W. Marcon Ln STE 175 Meridian, Idaho USA 83642
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