Soil volumetric water content (VWC):
Using factory calibration up to ± 3% (VWC) in mineral soils
with moderate salinity from 0 to 50% VWC
Using medium specific calibration up to ± 1% (VWC)
Temperature:
Typical ± 0.2°C, max. ± 0.4°C over full range (analog version ± 0.8°C)
Additional output (digital versions only):
Raw measurement data
Dielectric permittivity
Resolution
0.1% volumetric water content or better
0.01°C or better (analog version 0.2°C)
Range
0 to 60% volumetric water content
(up to 100% volumetric water content with limited accuracy)
Temperature: -40 to +80°C (analog version -40 to +60°C)
Output options
RS-485 with TBUS
RS-485 with Modbus
RS-485 with ASCII
SDI-12
Analog: 0 - 10 V (other voltage ranges on request)
4-20 mA (only volumetric water content)
Low voltage UART (especially for IoT radio modules)
Power
4-24 V DC, up to 40 mA during measurement
(analog version 12 - 24 V DC for 0 - 10 V output)
Measurement time digital versions: less than 50 ms
Measurement time analog versions: less than 500 ms
Cable length
10m
Sensor dimensions
18.2 cm x 3 cm x 1.2 cm
Data logger compatibility
Logger capable of appropriate power excitation and RS-485 (TBUS, Modbus, ASCII), SDI-12 or analog input
Free PC logger software available on request
