Scroll Depth plugin for Google Analytics
Collect more analytic data about your store.
This extension provides integration of Scroll Depth plugin for Google Analytics. This plugin lets you measure how far users are scrolling. It monitors the 25%, 50%, 75%, and 100% scroll points, sending a Google Analytics Event for each one. Read more about Scroll Depth plugin at http://scrolldepth.parsnip.io/.
To check what events your store sends to Google Analytics you can use Google Tag Assistant.
Notice: Scroll Depth extension will work correct if you already setup Google Api settings in Magento backend. Otherwise no scroll events will be sent.