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TDR-100 Soil moisture sensor

The TDR 100 is the ideal tool for quick, reliable, and convenient measurement. Whether you're in a field, greenhouse, or laboratory, the TDR 100 will provide the results you want.

Based on the proven time-domain measurement technology, the portable TDR 100 accurately measures soil moisture across the full range of soil moisture conditions. Select from the 3.8 cm, 7.5 cm, 12 cm or 20 cm probe rods to suit your measurement depth. The LCD interface provides two modes: volumetric water content and relative water content (irrigation management) mode.
Hand-held design allows for easy transporation and storage. Units connected by 5ft. Cable. Measures in less than one second. This meter has no data logging or geo-referencing capability.

  • Configure meter with FieldScout software (included). GPS interface requires two cables.
  • Includes hard-sided carrying case
  • Rods sold separately
  • Replacement probe

Please specify the desired probe length when ordering.

Technical data:

  • Measurement units: % water content (volumetric)
  • Measuring range: 0% to saturation (saturation typically around 50% volumetric water content)
  • Accuracy: ± 3 % volumetric water content
  • Power: 4 x AAA battery, > 12 month
  • Sensor Length: 3.8 cm, 7.5 cm, 12 cm or 20 cm
  • Sensor Diameter: 0.5 cm
  • Sensor spacing: 3.3 cm

Item-No.: 40010TDR-100 incl. 1 set rods (length selectable)

Additional rods:
Item-No.: 40014 – Additional rods 3.8 cm (1 pair)
Item-No.: 40013 – Additional rods 7.5 cm (1 pair)
Item-No.: 40011 – Additional rods 12 cm (1 pair)
Item-No.: 40012 – Additional rods 20 cm (1 pair)

Instruction manual as PDF file.