Go Direct® Electrode Amplifier

Go Direct® Electrode Amplifier

Go Direct® Electrode Amplifier

$64.00

The Go Direct Electrode Amplifier is a mV and pH amplifier that connects to Vernier electrodes and compatible third-party BNC electrodes. It connects via Bluetooth® wireless technology or via USB to your device.

ORDER CODE: GDX-EA Categories ,

The Go Direct Electrode Amplifier offers an affordable way to expand your experiment options. Its BNC connector provides the flexibility to attach and remove a Vernier electrode, such as the pH ElectrodeFlat pH ElectrodeORP ElectrodeISE electrode, or a third-party electrode. You can explore pH one day and potassium concentrations the next.

Because the Go Direct Electrode Amplifier is compatible with third-party electrodes, students learn consistent calibration and handling techniques on one amplifier using one software program. When electrodes expire or become damaged you need only replace the electrode—lowering your overall equipment costs.

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 free Graphical Analysis 4 app or LabQuest 2 App. 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.

Wired or Wireless—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook, or computer using our free Graphical Analysis 4 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 solution best for your classroom or laboratory.

Specifications

  • Units: pH or mV
  • Input range (mV): ±1000 mV
  • Input range (pH): 0 to 14 pH
  • Accuracy with new electrode (mV): ±20 mV
  • Accuracy with new electrode (pH): ±0.2
  • Connections:
    • Wireless: Bluetooth
    • Wired: USB

Requirements

Choose a platform below to see its compatibility requirements.

LabQuest 2

Full Support

The Go Direct® Electrode Amplifier is fully supported with LabQuest 2 (version 2.8.5), a standalone data logger with built-in graphing and analysis software.

Learn more about LabQuest 2 »

Compatibility Notes

  1. Requires a BNC electrode
  2. 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 Analysis 4 for Computers
Version 4.10
No interface requiredFull support 1 2
LabQuest 2Full support 1 3 4

Compatibility Notes

  1. Requires a BNC electrode
  2. 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.
  3. 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 when LabQuest 2 is connected to a computer or Chromebook via Wireless Data Sharing.
  4. 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 4 for Chrome
Version 4.10
No interface requiredFull support 1
LabQuest 2Full support 1 2 3

Compatibility Notes

  1. Requires a BNC electrode
  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 when LabQuest 2 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.
iOS
Software
InterfaceGraphical Analysis 4 for iOS
Version 4.10
Graphical Analysis GW for iOS
Version 4.0.6
No interface requiredFull support 1Full support 1
LabQuest 2Full support 1 2 3 4Full support 1 2 3 4

Compatibility Notes

  1. Requires a BNC electrode
  2. Connect this sensor directly to a supported mobile device via a wireless Bluetooth® connection for best results.
  3. iOS and Android devices can only connect to LabQuest 2 via Wireless Data Sharing.
  4. 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 Analysis 4 for Android
Version 4.10
Graphical Analysis GW for Android
Version 3.2
Google Science Journal
Version 1.2.259
No interface requiredFull support 1Incompatible 1Full support 1 2
LabQuest 2Full support 3 4 5Full support 1 3 4Incompatible

Compatibility Notes

  1. Requires a BNC electrode
  2. In addition to having the Science Journal app installed and the Location permission enabled, you must also install Graphical Analysis 4 on your Android device to use this sensor.
  3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
  4. iOS and Android devices can only connect to LabQuest 2 via Wireless Data Sharing.
  5. Connect this sensor directly to a supported mobile device via a wireless Bluetooth® connection for best results.
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

  • Go Direct Electrode Amplifier
  • Micro USB Cable

Accessories

AccessoryOrder CodePriceQuantity
Electrode SupportESUP$10.00
Go Direct® Charge StationGDX-CRG$69.00
Go Direct® pH BNC ElectrodeGDX-PH-BNC$40.00
Go Direct® Flat pH BNC ElectrodeGDX-FPH-BNC$73.00
Go Direct® Glass-Body pH BNC ElectrodeGDX-GPH-BNC$84.00
Go Direct® ORP BNC ElectrodeGDX-ORP-BNC$49.00

Support

Resources

Warranty

5-year limited warranty (1 year on battery)

Replacement Parts

Contact Us

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

* AP and Advanced Placement Program are registered trademarks of the College Entrance Examination Board, which was not involved in the production of and does not endorse this product.

** The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.

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