|“||Place two of these near each other to create a trap.||”|
— In-game Description
The Tripwire Alarm Trap is a single-use trap that emits a loud noise when triggered. It is set up by placing two of the traps down fairly near each other. Once you've done this, a wire will form between them and act as the tripwire. This is a really useful way of keeping track of anyone trying to trespass on your land, however the uses on PvE servers are very limited. You can set your own trap off if you aren't careful, exhausting their one use. However in a more recent update you can safely remove the wire and replace it again so you can safely walk past it.
This was introduced in v186 of ARK.