FieldScout TDR 150 Soil Moisture Meter

Reference: TDR-150
Brand: Spectrum Technologies

The TDR 150 portable soil moisture meter delivers the performance trusted for more than 30 years. It takes on-the-go readings at the push of a button, and variable rod lengths measure soil moisture in the ideal root zone.

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TDR-150

Torn between two models?

Measurement principle Time-domain measurement methods
Measurement units Percent volumetric water content (VWC)
Resolution 0.1% VWC
Accuracy +- 3.0% VWC with electrical conductivity (EC) < 2 mS/cm
Measuring range 0% to saturation (saturation occurs at about 50% volumetric water, depending on soil type)
Battery/life 4 AA lithium batteries; approximately 100,000 readings without backlight

Overview

With new enhancements, the TDR 150 brings significant gains in performance and measurement accuracy to optimize turf and the soil environment.

Features

Improved soil moisture accuracy (volumetric water content)
Measures EC (electrical conductivity)
Measures turf surface temperature
Option to add Bluetooth and GPS
The data logger stores approximately 50,000 measurements
Industry-exclusive backlit display
Ergonomic handle
Data collected with a USB flash drive
No PC interface needed
Powered by AA lithium batteries
Ideal for measuring containers on benches
Optional IR temperature sensor for measuring canopy
Warranted free of defects in material or workmanship for two years from the date of purchase

Note: rods are required for the TDRs to work.

Management with the FieldScout Mobile app

Capture and analyze measurements on your turf using Bluetooth wireless technology on the FieldScout TDR 350, 300 and 150 and the TruFirm.

View field readings in real time and email relevant information
Upload to the SpecConnect portal, view data from your whole course at once and export it for further analysis (Pro feature)
Color coding to represent a scale of turf firmness, moisture, surface temperature and EC
Free download from the App Store or Google Play
Works on iOS and Android devices
2 year warranty (serial number 3000 and above)

Specifications

Measurement principle: Time-domain measurement methods
Measurement units: Percent volumetric water content (VWC)
Resolution: 0.1% VWC
Accuracy: +- 3.0% VWC with electrical conductivity (EC) < 2 mS/cm
Measuring range: 0% to saturation (saturation occurs at about 50% volumetric water, depending on soil type)
Battery/life: 4 AA lithium batteries; approximately 100,000 readings without backlight
Data logger: 50,000 measurements
Electrical conductivity (EC) — range: 0 to 5 mS/cm
Electrical conductivity (EC) — resolution: 0.01 mS/cm
Electrical conductivity (EC) — accuracy: +/- 0.1 mS/cm
Temperature — range: -30°C to 60°C
Temperature — resolution: 0.1°
Temperature — accuracy: +/- 1°C

Manual

6445_TDR_150_manual

TDR rods

Replaceable rods for the TDR350, TDR250 and TDR150 soil moisture meters:

Rugged stainless steel construction
Field replaceable
Available in 4 lengths
The optional drilling kit includes two 3-inch (7.6 cm) rods (item 6429FS3)

Order codes

Ref. 6429FS4: TDR rods, two 7.6cm rods
Ref. 6431FS4: TDR rods, two 12.2cm rods
Ref. 6432FS4: TDR rods, two 20cm rods
Ref. 6428FS4: TDR rods, two 3.8cm rods

Specifications

FieldScout TDR 150 Soil Moisture Meter · TDR-150
Property	Value
Measurement principle	Time-domain measurement methods
Measurement units	Percent volumetric water content (VWC)
Resolution	0.1% VWC
Accuracy	+- 3.0% VWC with electrical conductivity (EC) < 2 mS/cm
Measuring range	0% to saturation (saturation occurs at about 50% volumetric water, depending on soil type)
Battery/life	4 AA lithium batteries; approximately 100,000 readings without backlight
Data logger	50,000 measurements
Electrical conductivity (EC) — range	0 to 5 mS/cm
Electrical conductivity (EC) — resolution	0.01 mS/cm
Electrical conductivity (EC) — accuracy	+/- 0.1 mS/cm
Temperature — range	-30°C to 60°C
Temperature — resolution	0.1°
Temperature — accuracy	+/- 1°C