These products are no longer available. Information is presented for reference only.

Go Wireless® pH (GW-PH), discontinued

Go Wireless® Electrode Amplifier (GW-EA), discontinued

Hardware & Software Requirements

Go Wireless pH uses Bluetooth low energy technology and can only be used with devices running the appropriate software that support Bluetooth low energy technology.

Platform Specifications
LabQuest 3 ● All Models
LabQuest 2 ● Model:LQ2-LE
● Model:LABQUEST2 requires an external Bluetooth radio
Go Direct® Bluetooth® Adapter (GDX-RADIO) (discontinued)
Original LabQuest ● Unsupported
macOS &
Windows		 ● Unsupported (for direct data collection)
● Data Share from LabQuest 2 or LabQuest 3 only.
ChromeOS ● Unsupported
iOS & iPadOS ● iPad (3rd generation or later)
● iPad air
● iPad mini (all models)
● iPhone (4S or later)
● iPod touch (5th generation)
Android OS ● Android devices that use Bluetooth low energy technology, see: https://www.bluetooth.com/what-is-bluetooth-technology/bluetooth-devices

Choose a platform below to see its compatibility requirements.

LabQuest
Interface LabQuest App
LabQuest 3 Full support
LabQuest 2 Full support 1
LabQuest Incompatible

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
Interface Graphical Analysis
LabQuest 3 Full support 1
LabQuest 2 Full support 1

Compatibility Notes

  1. Full support of this sensor is only available when LabQuest 2 or LabQuest 3 is connected to a computer or Chromebook via Wireless Data Sharing. The software does not support this sensor when connected to a computer or Chromebook via Bluetooth.
iOS
Software
Interface Graphical Analysis Graphical Analysis GW
No interface required Incompatible Full support
LabQuest 3 Full support 1 Full support 1
LabQuest 2 Full support 1 Full support 1

Compatibility Notes

  1. iOS and Android™ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
Android
Software
Interface Graphical Analysis Graphical Analysis GW
No interface required Incompatible Full support
LabQuest 3 Full support 1 Full support 1 2
LabQuest 2 Full support 1 Full support 1 2

Compatibility Notes

  1. iOS and Android™ 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.

Troubleshooting

  • Primary Test: Press the power button on the sensor to turn it on. (The red LED will be flashing.) Start the data-collection app and select the sensor from the list of available sensors. (The green LED will be flashing.) It should read approximately 4 in its storage solution.
  • Secondary Test: Take readings in fresh buffers, NOT distilled water! If no buffers are available, try it in vinegar (~ pH 2.5-3.5) or ammonia (~ pH 10.5-11.5). If readings do not change when the sensor is placed in different solutions, the sensor is possibly defective or damaged.

Additional Troubleshooting

GO WIRELESS OPERATION

pH ELECTRODE OPERATION

pH ELECTRODE MAINTENANCE AND STORAGE

Specifications

A Go Wireless pH sensor includes both the Go Wireless Electrode Amplifier and a pH Electrode.

  • Radio: 2.4 GHz Bluetooth 4.0, Low Energy
    ⚬ Maximum Wireless Range: 30 m, unobstructed
  • Battery: 100 mA Li-Poly
    ⚬ Battery Life (continuously on, 1 sample per second): 3 days
  • Units: pH or mV
  • Input range: (mV): ± 1000 mV; (pH): 0-14 pH
  • Accuracy
    ⚬ (mV): ± 10 mV (factory calibration)
    ⚬ (pH): ± 0.5 pH (factory calibration); ± 0.1 pH (user calibration)
  • Temperature range: –10 to 45ºC (readings not compensated)
  • Electrode Type: Single junction Sealed, gel-filled, Ag/AgCl
  • pH range: 0–14
  • Temperature range: 5 to 80°C (readings not compensated)
  • Response time: 2 s (to 90% of full reading in buffer)
  • Accuracy:
    ⚬ ±0.5 pH units (factory calibration when new)
    ⚬ ±0.1 pH units (user calibration)
  • Shaft diameter: 12 mm OD
    ⚬ Shaft material Polycarbonate plastic

Calibration

Calibrate? Yes. For many experiments, calibrating the pH Sensor is not required. For the most accurate measurements with this sensor, we recommend calibration. It is a simple process that takes only a few minutes.

See Specifications and User Guide for detailed instructions for calibrating using the LabQuest App or Graphical Analysis GW running on a phone or tablet. Calibration from a computer or Chromebook is not supported.

Related Products

Replacement & Maintenance Parts

Published: August 13, 2018. Updated: May 2, 2025.