R.E.K. 3000

The R.E.K. 3000  allows you to see your monster kill count, monsters around you and tells you if there is a rare monster near you.

Trivia
The R.E.K may stand for the words Rares, Enemies, Kills, the three displayed functions of this item. It may also be a reference to the term get rekt, a commonly used term, often used in regards to real life fails and kills in video games, referencing the monster-related info of this device.