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The TDR100 Time-Domain Reflectometer is the core of the Campbell Scientific time-domain reflectometry system. This system is used to accurately determine soil volumetric water content, soil bulk electrical conductivity, rock mass deformation, or user-specific time-domain measurement. Up to 16 TDR100s can be controlled using a single Campbell Scientific datalogger. PC-TDR software is used with our TDR100-based systems during system setup and troubleshooting. It is included with the TDR100, or can be downloaded from this website.

Visit the Downloads on the Support tab.

Benefits and Features

  • Compact, low-cost reflectometer
  • Designed for use in remote applications
  • Determines volumetric water content and electrical conductivity in soil and other porous media
  • Compatible with CR800, CR850, CR1000, and CR3000 dataloggers

Resources and Links

Ships With

(1) 14252 SDM Connector

(1) PC-TDR Support software on a CD

(1) 10873 9-Pin Female to 9-pin Male RS-232 serial cable, 6 ft

(1) 13776 TDR100/SDMX50 to Datalogger Cables (includes one 15" cable & one 12" cable)

Shipping Weights & Dims

Single Box Shipping Weight:
     4.0 lbs
     1.8 kg

Single Box Shipping Dimensions:
     12" x 12" x 8"
     30.5 x 30.5 x 20.3 cm
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