precision irrigation decisions count, the Field Scout 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 7.5, 12 or 20-cm (3, 4.8 or 8-inch)
probe rods to suit your desired depth measurement.
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
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.