HurryTimer comes with the following actions out-of-the-box, to get started click on Actions tab:
Hide countdown timer.
Redirect to another page.
Display a custom message.
Also, there are actions specific only to WooCommerce stores:
Hide Add to cart button
Change stock status: In stock, out of stock, in backorder.
HurryTimer Pro allows to add more than one action at the same time by clicking on Set additional action button.
Example: you can set product out of stock and redirect visitor to another page: