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Go Direct® Soil Moisture Sensor

Go Direct® Soil Moisture Sensor

Go Direct Soil Moisture, with Remote Logging capabilities.
Go Direct Soil Moisture Sensor - Image 2

Go Direct® Soil Moisture Sensor

The Go Direct Soil Moisture Sensor is used to measure the volumetric water content of soil. This makes it ideal for performing experiments in courses such as soil science, agricultural science, environmental science, horticulture, botany, and biology. This probe connects via Bluetooth® wireless technology or via USB to your device.

ORDER CODE: GDX-SM Category

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Education Levels
Categories

The Go Direct Soil Moisture Sensor uses capacitance to measure the water content of soil (by measuring the dielectric permittivity of the soil, which is a function of the water content). Simply insert this rugged sensor into the soil to be tested, and the volumetric water content of the soil is reported in percent.

Remote Data Logging—Go Beyond Wireless Limits!

This Go Direct sensor is capable of remote data logging! This feature allows sensors to store data directly to their internal memory—ideal for investigations that extend beyond typical connection ranges like long-term environmental monitoring or rocket launches. It works seamlessly with our award-winning Vernier Graphical Analysis® app so students can visualize their data and make key connections between abstract science concepts and real-world phenomena. Learn more about remote data logging.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis® app, as well as LabQuest® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook™, or computer using our Vernier Graphical Analysis® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

The Dirt on Soil Science: Engaging Experiments with Go Direct Sensors
The Dirt on Soil Science: Engaging Experiments with Go Direct Sensors (48:43)

Specifications

  • Range: 0 to 45% volumetric water content in soil
  • Operating temperature: –40°C to +60°C
  • Dimensions: 8.9 cm × 1.8 cm × 0.7 cm (active sensor length 5 cm)

Requirements

Choose a platform below to see its compatibility requirements.

LabQuest
InterfaceLabQuest App
LabQuest 3Full support
LabQuest 2Full support 1
LabQuestIncompatible

Compatibility Notes

  1. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Computers
Software
InterfaceGraphical AnalysisGraphical Analysis (Web App)
No interface requiredFull support 1Full support
LabQuest 3Full support 2Incompatible
LabQuest 2Full support 2 3Incompatible

Compatibility Notes

  1. For Bluetooth® connectivity, only computers running Windows 10 or Mac OS X 10.10 or newer are supported. The computer must also have a compatible Bluetooth 4.0+ radio.
  2. Connect this sensor directly to a computer or Chromebook via a USB or wireless Bluetooth® connection for best results. Alternatively, this sensor is fully supported when used with LabQuest 2 or LabQuest 3 when the LabQuest is connected to a computer or Chromebook via Wireless Data Sharing.
  3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Chromebook
Software
InterfaceGraphical Analysis (Web App)
No interface requiredFull support
iOS
Software
InterfaceGraphical AnalysisGraphical Analysis GW
No interface requiredFull supportFull support
LabQuest 3Full support 1 2Full support 1 2
LabQuest 2Full support 1 2 3Full support 1 2 3

Compatibility Notes

  1. Connect this sensor directly to a supported mobile device via a wireless Bluetooth® connection for best results.
  2. iOS and Androidâ„¢ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
  3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Android
Software
InterfaceGraphical AnalysisGraphical Analysis GW
No interface requiredFull supportIncompatible
LabQuest 3Full support 1 2Full support 1
LabQuest 2Full support 1 2 3Full support 1 3

Compatibility Notes

  1. iOS and Androidâ„¢ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
  2. Connect this sensor directly to a supported mobile device via a wireless Bluetooth® connection for best results.
  3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Python
Software
InterfacePython
No interface requiredFull support
Javascript
Software
InterfaceJavascript
No interface requiredFull support 1

Compatibility Notes

  1. A wireless Bluetooth® connection can be made with Go Direct sensors on any platform running a browser with WebBluetooth support. However, only a few operating systems have been tested and testing has been limited.
LabVIEW
Software
InterfaceNI LabVIEW
No interface requiredFull support 1

Compatibility Notes

  1. For Bluetooth® connectivity, only computers running Windows 10 or Mac OS X 10.10 or newer are supported. The computer must also have a compatible Bluetooth 4.0+ radio.

What's Included

  • Vernier Go Direct Soil Moisture Sensor
  • Micro USB cable

Accessories

Replacement PartOrder CodeQuantity
Micro USB CableCB-USB-MICRO
Go Direct® 300 mAh Replacement BatteryGDX-BAT-300

Support

Resources

Warranty

5-year limited warranty (1 year on battery)
See our warranty policy

Replacement Parts

Contact Us

Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.

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