Spectrum Technologies WaterScout SM 100 Soil Moisture Sensor

https: / / www.youtube.com/ watch? v= ZXpeI7ukEW8 WaterScout SM 100 Soil Moisture Sensors The key is knowing both when and how much to water! Maintaining a healthy soil moisture and water balance is essential for producing high quality plants. Under-watered plants suffer from nutrient deficiencies, stunting and wilting. Conversely, over-watered plants are more susceptible to disease pressure and less tolerant of dry conditions later on in their life cycle. Extreme over-watering will suffocate the plant and lead to root death. Measures Volumetric Water Content ( VWC) of soil Capacitance-type sensor responds immediately to changes in soil moisture content for better irrigation decisions Calibrated for mineral soils or soilless media Installs easily into 3/ 4 in ( 1.9 cm) hole Install permanently or use to take spot measurements Can be read with the FieldScout® Soil Sensor Reader ( Item 6466) or WatchDog® 2000 and 1000 Series Stations Connect up to 8 sensors to one station Not compatible with 400/ 200 loggers. WatchDog Stations sold prior to 2009 must be upgraded. ( call for support) NEW Calibration feature: Sensors with " 3/ 14" code can be re-calibrated using the FieldScout Soil Sensor Reader ( item 6466) or the WaterScout Calibration Device ( item 6470CAL3V) . Please see the product manual for calibration proceedure. See our Soil Moisture Sensors in action in this video from AgWeb.com - Click here for the video. The product feature begins at 13: 30 of the video. In episode 12 of Corn College TV season 2, head to the field with Farm Journal Associate Field Agronomist Missy Bauer. She shows how her crew is using a technology from Spectrum Technologies to monitor irrigation efficiency. Specifications : Standard Interface: WatchDog weather station, FieldScout soil moisture reader Range: 0% VWC to saturation 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) Resolution: 0.1% VWC Cable Length: 6 ft ( 1.8 m) and 20 ft ( 6 m) standard, extendable up to 50 ft ( 15 m) Accuracy: 3% VWC @ EC < 8 mS/ cm Sensing Area: 2.4 in ( 6 cm) x 0.8 in ( 2 cm)