Use the following images to determine the version of your pH Sensor. The dates indicate the approximate time frame when these sensors were sold.
For details on Vernier’s warranty policy visit www.vernier.com/ordering/warranty-policy/

pH Sensors

pH Sensor (PH-BTA)
2012-current

2006-2012

Pre-2005

Pre-2002

Tris-Compatible Flat pH Sensor (FPH-BTA)
2010-current

Glass-Body pH Electrode BNC (GPH-BNC)
2015-current

Go Direct pH Sensors

Go Direct^® pH Sensor (GDX-PH)
2017-current

Go Direct^® Tris-Compatible Flat pH (GDX-FPH)
2017-current

Go Direct^® Glass-Body pH Sensor (GDX-GPH)
2017-current

Go Wireless pH

Go Wireless^® pH (GW-PH, discontinued)
2015-2017

Related TILs

pH Sensor Troubleshooting and FAQs
Tris-Compatible Flat pH Sensor Troubleshooting and FAQs
Glass-Body pH Electrode BNC: Troubleshooting and FAQs
Go Direct pH Sensor Troubleshooting and FAQs
Go Direct Tris-Compatible Flat pH Sensor Troubleshooting and FAQs
Go Direct Glass-Body pH Sensor Troubleshooting and FAQs
Go Wireless pH Troubleshooting and FAQs
Data Collection with Go Wireless pH/Electrode Amplifier FAQs
Does Vernier charge for repairs?
How do I dispose of my pH sensor?