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SoilMoisture Equipment Corp - a Stevens Water Monitoring Systems Company
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Soilmoisture - Model HandiTrase -Portable Profiling Probe

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The HandiTrase is the Only Portable Profiling Probe on the market measuring Volumetric Water Content down to 40 cm (16”). Using SoilMoisture’s TDR Trase technology, it is the most field-tested and accurate probe of its kind. Available in various probe lengths.
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HandiTrase TDR Soil Moisture Meter 0-100% VWC (Part Number 6085)

  • HandiTrase is a Volumetric Moisture Content sensor. It is a real TDR technology.
  • Accuracy +/- 2% or less of full scale
  • Measurement Range: 0% water content (oven dry soil) to 100% water content (pure water)


What’s in the box:

  • HandiTrase handheld TDR Android tablet and software app
  • Universal charger for HandiTrase unit
  • 3 ft. micro-USB to USB A cable
  • Quick Start Guide
  • Instructional video and pdf files are loaded in the unit.


HandiTrase TDR Soil Moisture Meter with CON probe, Part Number TR85-S (6085K1). Kit includes:

  • 6085 HandiTrase handheld TDR Android tablet, software and accessories
  • Standard waveguide connector handle
  • 15 cm (6 in.) long waveguide probe
  • 30 cm (12 in.) long waveguide probe


HandiTrase TDR Soil Moisture Meter with FCT probe, Part Number TR85-F40 (6085K2). Kit includes:

  • 6085 HandiTrase handheld TDR Android tablet, software and accessories
  • 40 cm (16 in.) Field Waveguide (Slammer)


HandiTrase TDR Soil Moisture Meter with FCT probe, Part Number TR85-FC40 (6085K3). Kit includes:

  • 6085 HandiTrase handheld TDR Android tablet, software and accessories
  • 40 cm (16 in.) Coated Field Waveguide (Coated Slammer) for high EC soils (More than 5 ds/m)

Works with all of our standard Waveguides: Buriable, Slammer and Standard Connector types.
Accuracy: +/- 2% or better.

There are a number of other waveguides available on our website for additional purchase or you can consult with us on designing a waveguide specific for your use.

TDR SYSTEM SPECIFICATIONS:

  • Works with all of our standard waveguides: Buriable, Slammer and Standard Connector types.
  • Accuracy: +/- 2% or better.
  • 10 ps resolution minimum sampling rate.
  • Measurement pulse: 1VPP,
  • Cable measurements up to 250 feet. (used to validate Probe assemblies & extended Probe cable runs)
  • TOR graphic waveform analysis.
  • Automatic GPS Location tagging (User enabled)
  • Create Site Location Tags for any or all of your measurements.
  • Editable journal entries can be added to your measurements, even days later.
  • Export data to your desktop via Email, USB, USS-Ethernet, Bluetooth or WiFi.
  • Built-in camera to help document site conditions.
  • User-selectable English or Spanish languages.

HARDWARE SPECIFICATIONS:

  • Android OS 12 running on A53 4-core CPU @ 1.2GHz. 16GB Flash memory, 2GB for OS.
  • Display: 1280×800 full-color IPS capacitive touch screen.
  • SIM-card slot for Data modem & Phone. (WBCDMA, GSM/LTE & others)
  • Micro-SD memory expansion slot up to 32GB.
  • Cameras: 8MP front & 2MP rear.
  • USB 2.0-O TG, Bluetooth 4.0 & WiFi (B/G/N). (USS-Ethernet capable with optional dongle)
  • Charge port, 3.5mm audio headphone/microphone jack & flashlight.
  • Operating temperatures: -20 to +50C, storage temperatures: -40 to +60C.
  • Humidity 5 to 95% non-condensation.
  • Industrial Case: IP-67 & drop resistant from 1.2 meters.
  • 3.7V 7200mA Li-battery. (Lasts several days under constant use, over a week on standby)

Agricultural & Precision Farming

  • Field Moisture Mapping & Transects: Enables spatial profiling of soil moisture across fields to support precision irrigation and crop management
  • Optimizing Irrigation Scheduling: Provides real-time volumetric water content (VWC) data to avoid under- or over-watering

Remote Sensing Ground Truthing

  • Calibration & Validation: Calibration measurements for satellite or drone remote sensing of soil moisture, enhancing accuracy of remote datasets

Environmental & Hydrological Research

  • Research-grade In Situ Sampling: Offers a field-based alternative to oven-drying for moisture determination
  • Contaminated Site Monitoring: Supports tracking of soil moisture in remediation or ecological studies

Geotechnical & Construction Engineering

  • Site Investigation: Valuable in characterizing moisture variations in soils for slope stability, embankments, and dam foundations

Academic & Soil Science Studies

  • Pedological Research: Enables rapid profiling of moisture at multiple depths, aiding research into soil texture, structure, and hydrology

Precision Field Studies & Environmental Monitoring

  • Point Measurements in Diverse Conditions: Works from 0–100% VWC with ±2% accuracy—even in high-salinity or high-EC soils where other sensors struggle
  • Use in Extreme Soils: Coated probes resist corrosion; slam-in probes tolerate rocky/clayey soils

Soil-Probe Versatility & Depth Profiling

  • Multiple Probe Lengths: Configurable from ~8?cm to 60?cm, enabling measurements at varied soil horizons across disciplines

Field Data Management & Documentation

  • Integrated GPS & Geotagging: Records exact locations of readings for mapping and tracking
  • Onboard Camera & Journal: Captures site conditions and notes alongside each measurement
  • Rapid Data Export: Connectivity via USB, Bluetooth, Wi-Fi, Ethernet, even cellular SIM-capable

Time-Sensitive Field Measurements

  • Fast Readouts: Each measurement in approximately 4 seconds enables high-throughput surveys
  • Portable & Rugged: Handheld ruggedized tablet device rated IP-67, operating ±?20?°C to 50?°C, drop-resistant to 1.2?m