soil volumetric water content
Based on the capacitance measurement principle, the SM100 is ideal for researchers, students and growers for scientific experiments in the field or glasshouse, or monitoring and controlling irrigation.
The SM100 is an analog voltage sensor that is compatible with our low cost, dedicated data loggers, or our range of telemetry data loggers. We can also assist you in connecting the SM100 to your existing data logging system.
- Soil moisture sensors, probes and meters
- Soil water potential sensors
- Pore water samplers
- Soil CO2 concentration
- Soil nutrient analyzer
- Soil pH meter
- Soil EC meter
- Sap flow sensors
- Weather stations
|Measurement Range||0% soil volumetric water content (VWC) to saturation|
|Accuracy||3% VWC with manufacturer's calibration | 1% VWC with custom calibration|
|Power Requirements||3 to 5V @ 6 to 10 mA|
|Output||Analog voltage 0.5 – 1.5V for a 3V excitation (ratiometric for other excitation voltages)|
|Cable Length||1.8 m (standard) | 6 m (optional) | 15 m (optional)|
|Sensing Area||6 cm x 2 cm|
- What is a capacitance sensor?
- 5 common mistakes when measuring soil moisture
- The Soil Water Compendium