Use the following images to determine the version of your Drop Counter. 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/
Vernier Drop Counters
Drop Counter (VDC-BTD)
2013-current
Pre-2007 Non-autoID sensor | 2007-2012 AutoID sensor
Both the autoID and non-autoID Drop Counters look the same.
Go Direct Drop Counter
Go Direct® Drop Counter (GDX-DC)
2017-current
