WaterScout SMEC 300 Soil Moisture / EC / Temperature Sensor

The WaterScout SMEC 300 Soil Moisture / EC / Temperature Sensor combines affordability and accuracy into a sensor that is easy to install. Soil moisture is measured by a capacitance type sensor driven by an 80 MHz oscillator. Soil salinity is measured by a pair of carbon ink electrodes which provide a large contact surface with the soil solution. Temperature is measured with a thermistor potted in the sensor molding.
Range VWC: 0% VWC to saturation
EC: 0 to 10 mS/cm,
Temp: 33 - 175°F (0.5 - 80°C)
Resolution VWC: 0.1%
EC: 0.01 mS/cm
Temp: 0.1°F (0.1°C)
Accuracy VWC: 3%
EC: ± 2%
Temp: ± 1°F (0.6°C)
Output Analog voltage, time division multiplexed
Power 3V @ 6 to 10 mA
Connector 2.5mm stereo plug