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
4110_ph-bta.jpg
2006-2012
4110_ph-bta_old.jpg
Pre-2005
4110_ph_graybody.jpg
Pre-2002
4110_ph-din.jpg
Tris-Compatible Flat pH Sensor (FPH-BTA)
2010-current
4110_fph-bta.jpg
Glass-Body pH Electrode BNC (GPH-BNC)
2015-current
4110_gph-bnc.jpg

Go Direct pH Sensors

Go Direct® pH Sensor (GDX-PH)
2017-current
4110_gdx-ph.jpg
Go Direct® Tris-Compatible Flat pH (GDX-FPH)
2017-current
4110_gdx-fph.jpg
Go Direct® Glass-Body pH Sensor (GDX-GPH)
2017-current
4110_gdx-gph.jpg

Go Wireless pH

Go Wireless® pH (GW-PH, discontinued)
2015-2017
4110_gw-ph.jpg

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?

Published: December 6, 2017. Updated: February 24, 2023.