Go Direct® Electrode Amplifier

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.

SKU: 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 3 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.

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

Go Direct Electrode Amplifier
Micro USB Cable

Electrode Support (ESUP)
Go Direct® Charge Station (GDX-CRG)
Go Direct® Flat pH BNC Electrode (GDX-FPH-BNC)
Go Direct® Glass-Body pH BNC Electrode (GDX-GPH-BNC)
Go Direct® ORP BNC Electrode (GDX-ORP-BNC)
Go Direct® pH BNC Electrode (GDX-PH-BNC)

Micro USB Cable (CB-USB-MICRO)
Go Direct® 300 mAh Replacement Battery (GDX-BAT-300)
Micro USB to USB-C Cable (CB-USB-C-MICRO)

User Manual: https://www.vernier.com/manuals/gdx-ea/
Warranty: 5-year limited warranty (1 year on battery)
FAQ: https://www.vernier.com/til/3858/


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Educational Standards

Our products support provincial requirements for NGSS, AP, and more.