Loading... Please wait...
  • GroundGrocer
  • GroundGrocer
  • GroundGrocer
  • GroundGrocer




  1. 1
    Effective Microorganisms EM1
    Effective Microorganisms EM1
    AU$34.00 (inc GST) AU$30.91 (ex GST)
  2. 2
    Compost Thermometer Probe Handle
    Compost Thermometer Probe Handle
    AU$82.50 (inc GST) AU$75.00 (ex GST)
  3. 3
    Reotemp Backyard Compost Thermometer
    Reotemp Compost Thermometer (Backyard)
    AU$96.25 AU$90.75 (inc GST) AU$87.50 AU$82.50 (ex GST)
  4. 4
    Reotemp heavy duty compost thermometer in compost windrow
    Reotemp Compost Thermometer Heavy Duty 5/16"
    AU$209.00 (inc GST) AU$190.00 (ex GST)
  5. 5
    Reotemp compost thermometer


WaterScout SM 100 Soil Moisture Sensors and FieldScout Soil Sensor Reader

  • WaterScout SM 100 Sensor shown with the WatchDog Irrigation station
  • Image 2
  • SpecWare Pro showing data from two WaterScout SM 100 Sensors buried at different depths
  • WaterScout SM 100 shown with the FieldScout Soil Sensor Reader
  • Image 5
  • WaterScout SM 100
  • Image 7
  • Image 8
  • Image 9
Price :
AU$687.50 (inc GST) AU$625.00 (exc GST)
SKU : JM-6460
Brand :
Weight :
2.00 KGS
Availability :
Usually ships within 4-6 Weeks
Shipping :
Calculated at checkout

Product Description

WaterScout SM 100 Soil Moisture Sensor 

The key is knowing both when and how much to water!

comes with a 6 Ft (183cm) sensor 

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)

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.  



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)

FieldScout Soil Sensor Reader

  • Spot-check WaterScout SM 100 sensors in the field
  • Also reads Watermark sensors (requires separate adapter)
  • Includes soft-sided case (also available separately)
  • Item 7500 will also fit the WatchDog 1000/2000 Series Data Shuttle (item 3679WD), LightScout Red/Far-Red Meter (item 3412), LightScout Quantum Light Meters (four models) and the LightScout External Light Sensor Reader (item 3415FX)

Optional Add-Ons

This items are optional, please contact us if you require any of them or want to know more 

  • WaterScout SM 100 Sensor 20 Ft (6 meters)    #6460-20
  • Watermark Adapter for FieldScout Soil Sensor Reader  #6450FSADPT
  • FieldScout Soft-Sided Carrying Case  #7500 

Product Videos

How to Install the WaterScout SM 100 Soil Moisture Sensor ()
  • How to Install the WaterScout SM 100 Soil Moisture Sensor

Product Reviews

This product hasn't received any reviews yet. Be the first to review this product!

Write your own product review

Find Similar Products by Category

Vendors Other Products

Customers Who Viewed This Product Also Viewed