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Redstone Comparator

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Redstone Comparator
Redstone Comparator (Active)


Redstone block

Tool Used



Yes (64)



First Appearance

Update 0.14.0

Redstone Comparators are Blocks that were added in Update 0.14.0. They are Redstone-related blocks.



Redstone Comparators are primarily used in Redstone circuits to maintain, compare, or subtract signal strength, or to measure certain Block states, including the fullness of Containers such as ChestsBrewing Stands, and Furnaces.

While the normal position is next to the container it measures the fullness of, the Comparator is able to detect this through a block. This allows for a Chest on one side of the wall, and the comparator on the other side of the wall.

The Comparator has two modes; Subtraction Mode and Comparison Mode. When the single light is lit, it is in Comparison Mode. When the Player hits the comparator it switches mode.


  • Item Frames generate a Redstone signal with Redstone Comparators depending on how many times the Item is rotated.
    • For example, an Item rotated 0 times gives signal of 1. The Item rotated once give a signal of 2.
  • The Comparator cannot be locked, unlike Redstone Repeaters.
  • The Player can make a Redstone clock by connecting a Comparator to some Redstone dust.
  • The Player can make a Redstone delaying system using 2 or more Comparators and some Redstone.
  • The Redstone Comparator will have more power depending on how full a Container is next to it.
  • Comparators can create temporary Airlocks if placed underwater.
  • It is often confused with Redstone Repeaters.
Redstone (Torch, Active)RedstoneRedstone (Torch, Inactive)

Redstone Dust | Redstone Torch | Piston | Redstone Lamp | Pressure Plate | Lever | Redstone Ore | Block of Redstone | Redstone Comparator | Daylight Sensor | Weighted Pressure Plate | Redstone Repeater | Button | Dispenser | Dropper | Hopper | Command Block | Note Block | Trapped Chest | Tripwire Hook | Observer

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