TDR Vdc moisture probe
Most TDR sensors require a specialised interface, such as the Campbell Scientific TDR100, to convert the electromagnetic pulse from a time domain reflectometry (TDR) measurement to a meaningful value such as dielectric permittivity or volumetric water content.
The TDR-Vdc soil moisture probe removes the need to use the expensive, specialised interfaces and allows the scientist and engineer to connect the sensor directly to their data logger. The TDR-Vdc has an analog voltage output and can therefore be connected to most commonly available data logging platforms.
The TDR-Vdc soil moisture probe is also embedded with a temperature sensor for accurate measurements of soil, substrate or materials temperature.
- Measurement Principle: TDR (Time domain reflectometry)
- Measurement Range: 0 to 100% VWC
- Accuracy: VWC: 0÷40%: ± 1%; VWC: 40÷70%: ± 2%
- Sensor (Rods) Length: 11cm
- Measurement Principle: Pt100 1/2 DIN B
- Accuracy: ± 0.2°C
- Power Supply: 6 to 24 Vdc
- Power Consumption: Sleep: 5 mA; Measuring: 120 mA
- Cable: Standard Length = 5 m
- Output: 2 x 0 to 1 V