Entity Detector (Draconic Evolution)

The Entity Detector is a machine added by Draconic Evolution. It emits a redstone signal when an entity is detected. The Detector requires Redstone Flux (RF) to run and the player will count as an entity; changing the RS maximum threshold to 2 if will cause it to also detect mobs when the player is close to it. The detection range can be increased by adding blocks to it.