Soil Moisture Meters TDR300
When precision irrigation decisions count, the FieldScout TDR Series offers growers a tool to eliminate the guesswork. Based on proven time-domain measurement technology, these portable units accurately measure soil moisture across the full range of soil moisture conditions. Select from the 1.5***, 3, 4.8 or 8-inch (3.8***, 7.5, 12 or 20-cm) probe rods to suit your desired depth measurement. Install PVC access tubes and take readings deeper in the soil profile for permanent crops like apple, grapes, and nut crops.
The TDR 300 has two volumetric water content modes; one for standard soils and one for higher clay soils. In volumetric water content (VWC) mode, the meter converts a measured electrical signal into percent soil moisture content using an equation valid over a wide range of mineral soils. In irrigation mode, the meter displays a relative water content (RWC) on a scale of 0 to 100 corresponding to a user-defined upper and lower soil moisture reference level. Water deficit, the amount of water needed to bring the soil moisture content up to the upper reference level, is also calculated and displayed. The reference levels are easily programmed into the meter with the accompanying software. Create up to 2 management sites based on your soil types and crop needs. Use the raw reading mode (measurement period in microseconds) to do soil-specific calibrations.
Perfect for Researchers and Consultants! An internal data logger and RS-232 port allow for use with a DGPS for geo-referenced soil moisture measurements. Includes software and PC cable*.
Use the powerful SpecMaps online application to discover the value of spatially variable sensor measurements. Mapping software requires GPS**; not included.
FieldScout TDR 300 Meter (Item 6430FS) now includes Soft-Sided Carrying Case (Item 6430CASE), RODS ARE SOLD SEPARATELY. For more information on the TDR Rods.
| Item # |
Description |
| 6430FS |
: TDR 300 Soil Moisture Meter & Carrying Case (rods not included) |
| 2950CV5 |
: GPS/DGPS Cable |
| 7250 |
: GPS Unit Mounting Bracket |
| 3661USB |
: USB-to-Serial Adapter |
| 6430 CASE |
: TDR 300 Carrying Case |
| 6430PH |
: Pilot Hole Maker for TDR Meters (Includes two 3in (7.5cm) Rods) |
| 6428FS |
: Two 1.5in(3.8cm) Rods |
| 6429FS |
: Two 3in(7.5cm) Rods |
| 6431FS |
: Two 4.8in(12cm) Rods |
| 6432FS |
: Two 8in(20cm) Rods |


* Spectrum’s PC cables connect to a 9-pin serial port. USB-Serial adapter (item 3661USB) required for connection to computers with only USB ports. ** GPS interface requires two cables. The GPS/DGPS cable (item 2950CV5) is available from Spectrum. A PC serial interface cable supplied by the manufacturer of the GPS receiver is also required. *** 1.5" (3.8 cm) rods may require a TDR 300 firmware update. Please contact us for instructions.
Garmin GPS 72H Handheld GPS Navigator - Purchase to your supplier
The GPS 72H is a low-cost solution designed to provide precise GPS positioning using correction data obtained from the Wide Area Augmentation System (WAAS). The GPS 72H can provide position accuracy to less than three meters when receiving WAAS corrections. This rugged, waterproof, unsinkable GPS receiver offers a large, 4-level grayscale screen. It's designed as the next generation in basic, entry-level Garmin GPS.