PC Question about Feral Sense

[Sjustus548]

I was wondering what the range of Feral Sense was and if it was in a cylinder or a sphere around the player?  I was curious if the range is say 20m for example, would making a base 30m high cause the zombies to no longer sense us there.  

 

[infernalwrath]

Here's a good video that explains it. Thanks to Salty Zombies for making it.

Edit: Doesn't mention if it's a sphere or what, but explains the ranges with and without armour and skills.