Soil moisture sensors
The Acclima True TDT sensor
A premium, research-grade SDI-12 probe that measures volumetric water content, bulk electrical conductivity, and soil temperature across the full 0–100% range.
When you need the full picture
The Acclima True TDT is a waveform-digitizing time-domain transmissometer: it captures the full reflected waveform for a precise water-content reading, and it also reports bulk electrical conductivity — invaluable in saline soils or where salts move with irrigation and fertigation.
Why step up to the Acclima
Full 0–100% range
Measures volumetric water content across the entire range, including saturated soils.
Bulk EC sensing
Tracks bulk electrical conductivity, so you can watch salinity and fertigation alongside moisture.
Research-grade TDT
Waveform-digitizing time-domain transmissometry on the SDI-12 standard for repeatable, dependable data.
Acclima True TDT technical specifications
Explore the system
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Is the Acclima right for your soil?
If you manage saline soils or need the widest range, we'll help you decide between the Acclima and the SMT100.
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