ENVIROSMART

Water-Content-Profile Probe

The EnviroSMART TM probes are manufactured by Sentek to provide soil water content profiles for irrigation scheduling or other water movement systems. The measurement range is oven dry to saturation. The probes measure soil moisture at multiple depths and are easy to install. Tools offered by Campbell Scientific allow the probes to be installed with minimal soil disturbance.

EnviroSMART is recommended for higher accuracy research measurements, measurements deeper than 80 cm, or stony soils. It is customized for individual applications by adding sensors at user-specified measurement depths. The maximum measurement depth of the standard configuration is 6 feet (2 m); deeper measurements are possible with special provisions.


Features

  • Measures volumetric water content profile to a depth of 6 feet (2 m); deeper measurements are possible with special provisions
  • Outputs SDI-12 signal
  • Specifications vary based on output; refer to our manual
  • Uses electrical capacitance to measure soil moisture
  • Customized by adding sensors at specified measurement depths
  • Installation occurs with a minimal amount of soil disturbance
  • Manufactured by Sentek, Inc.

Specifications

  • Maximum Sensors per Standard Probe: 16
  • Sensor Measuring Principle: high frequency capacitance
  • Output: SDI-12 version 1.2
  • Interface Measuring Principle: 16 bit pulse count
  • Output Resolution: 16 bit
  • Output Method: serial data
  • Current Consumption
    • Sleep: 250 µA
    • Standby: 66 mA
    • Sampling: 100 mA
  • Water Content Reading Range: 0 to ~65%
  • Temperature Effects: ±3% (5° to 35°C)
  • Time to Read One Sensor: 1.1 seconds
  • Sphere of Influence: 99% of the reading is taken within a 10 cm radius from the outside of the access tube