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FieldScout TDR 150 Soil Moisture Meter

Portable soil moisture meter allows you to obtain readings on the go at the press of a button. Variable rod length options provide soil moisture measurements at your ideal root zone. With new enhancements, the TDR 150 provides significant improvements in performance and measurement accuracy for optimal turf and soil environments.

  • Increased accuracy of soil moisture (Volumetric Water Content)
  • Measures EC (Electrical Conductivity)
  • Measures Turf Surface Temperature
  • Option to add on Bluetooth and GPS
  • Data logger records approximately 50,000 measurements
  • Industry exclusive backlit display
  • Ergonomic handle
  • Data collected with USB flash drive
  • No PC interface needed
  • Powered by AA lithium batteries
  • Ideal for measuring containers on benches
  • Optional IR Temp sensor to measure canopy

Note: Rods are required for TDRs to function



Manage with the FieldScout Mobile App

Capture and analyze measurements on your turf using Blutooth wireless technology on our FieldScout TDRs 350, 300, 150 and Trufirm.

  • Visualize field readings in real time and e-mail relevant information
  • Upload to SpecConnect Web Portal and view your entire course’s data at once and export for further analysis (Pro Features)
  • Color-coded to represent a scale of turf firmness, moisture, surface temperature and EC
  • Free download from App store or Google Play
  • Works on iOS and Android devices


Measurement Principle:

Time - domain measurement methods

Measurement Units:

Percent Volumetric Water Content (VWC)


0.1% VWC


+- 3.0% VWC with Electrical Conductivity (EC)  < 2 mS/cm


0% to saturation (Saturation up to about 50% volumetric water depending on soil type)


4 AA lithium batteries; approximately 100,000 readings without backlight

Data Logger:

50,000 measurements


Range: 0 to 5 mS/cm, Resolution: 0.01 mS/cm, Accuracy: +/- 0.1 mS/cm


Range: -30°C to 60°C, Resolution: 0.1°, Accuracy: +/- 1°C

Ordering Info

6445 TDR 150: Includes carrying case. Rods sold separately (below)
6445TS Infrared Temperature Sensor-TDR 150
6435SP TDR Rod Spacer (1" & 1/2" depth)
6445GBU Bluetooth and GPS Upgrade
6445S Replacement TDR 150 Probe Block

TDR Rods

Multiple depth options for varying root zones.
•  Sturdy stainless-steel construction
•  Field replaceable

Two 1.5 inch (3.8 cm) Rods
Two 3 inch (7.5 cm) Rods
Two 4.8 inch (12 cm) Rods
Two 8 inch (20 cm) Rods