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12 V DC internal
rechargeable
No
PAGE 12
Yes, but not
necessary
Interface to PC
Mandatory
No
Link to other equipment No
Australia
Via range of add-on No
telemetry
Intrinsic
Logging capability
PVC access tube
Remote access
PVC access tube
Installation method
mm
Australia
mm soil water
Output reading
10 cm radius
(95% within 4 cm)
10 cm radius
(95% within 4 cm)
± 1 % when
calibrated
No
Australia
6 V DC 4 x AA
No
PVC access tube
Mandatory
Yes
Yes: weather
No
sensors, flow rates,
water table etc.
Intrinsic radio
telemetry
Australia/Austria
6 V DC from
solar cell
Intrinsic
PVC access tube
0-100 units
mm
uncalibrated, or
mm/% soil moisture
calibrated
Up to 10 cm
(95% within 4 cm)
± 1 % when
calibrated
0-saturation
Yes
No
No
Australia
7.5 V DC
Intrinsic
PVC access tube
mm
10 cm radius
(95% within 4 cm)
± 1 % when
calibrated
0-saturation
Buddy®
No
No
No
USA
9 V DC
(life ~1 year)
No
Pushed into soil
% (uncalibrated)
2-3 cm
Semi-quantitative
0-saturation
Aquaterr®
0-saturation
Netafim data
collector
Via logger
Via logger
Via logger
UK
5-15 V DC
Yes
Hand inserted or
buried at bottom of
access tube
Voltage calibrated
to m3/m3
2-3 cm
Mandatory
No
No
Israel
9 V DC
(life ~1 year)
Intrinsic
Buried in soil
30-80 soil
moisture units
2-3 cm
1% when calibrated, ± 4.5 %
otherwise
5% m3 m-3.
ThetaProbe®
W A T E R
Country of origin
10 cm radius
(95% within 4 cm)
Measurement sphere
± 0.5 % when
calibrated
0-saturation
Gopher®
S O I L
12 V DC from
solar cell
± 0.1 % when
calibrated
Stated accuracy
0-saturation
C-Probe® Adcon
Contents
Power source
0-saturation
Reading range
Diviner2000®
Table 5.3
EnviroSCAN®
Home
M O N I T O R I N G
TABLE 5.3 Comparison of frequency domain reflectometry (capacitance)
technologies for measuring SWC.