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Calibrated Sculk Sensor

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This article describes content that may be included in Java Edition and Bedrock Edition. 
This content has appeared in Java Edition 1.20 and Bedrock Edition 1.19.80 development versions, but the full update containing it has not been released yet.
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The features on this page are exclusive to Experimental Gameplay in Bedrock Edition. 
These features may be properly added in a future update, but currently require enabling one or more settings in the "Next Major Update" section of the Game Settings menu.

A calibrated sculk sensor is a variant of the regular sculk sensor that allows to filter which vibration frequency it detects through a redstone signal input.



Ingredients Crafting recipe Description
Amethyst Shard +
Sculk Sensor
Sculk Sensor
Calibrated Sculk Sensor
[upcoming: JE 1.20 & BE 1.20.0]


Calibrated sculk sensors can be broken with any tool, but can be broken faster with a hoe. They drop experience when broken. When broken by an item that is enchanted with Silk Touch, a calibrated sculk sensor drops itself.


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Unlike the regular sculk sensors, there are a few differences:

  • Calibrated sculk sensor can detect vibrations up to 16 blocks away.
  • Calibrated sculk sensors have a cooldown of 1 second instead of 2 seconds.

One side of the calibrated sculk sensor can receive a redstone signal as an input, and the strength of that redstone signal is the only vibration frequency the sculk sensor will listen to. The following list showcases (in order) a list of frequencies that the calibrated sculk sensor can listen for.

  1. Active Redstone Wire (NESW) (1).png Movement in any medium (land, water and air)
  2. Active Redstone Wire (NESW) (2).png Landing on any surface (land or water)
  3. Active Redstone Wire (NESW) (3).png Item interactions
  4. Active Redstone Wire (NESW) (4).png Gliding with an elytra or unique mob actions (Ravager roar, Wolf shaking, etc)
  5. Active Redstone Wire (NESW) (5).png Dismounting a mob or equipping gear
  6. Active Redstone Wire (NESW) (6).png Mounting a mob or interacting with a mob
  7. Active Redstone Wire (NESW) (7).png Mobs and players getting damaged
  8. Active Redstone Wire (NESW) (8).png Consuming items (drinking and eating)
  9. Active Redstone Wire (NESW) (9).png Blocks 'deactivating' (door close, chest close, button unpress, etc)
  10. Active Redstone Wire (NESW) (10).png Blocks 'activating' (door open, chest open, button press, etc)
  11. Active Redstone Wire (NESW) (11).png Blocks changing (adding food to campfire, etc)
  12. Active Redstone Wire (NESW) (12).png Blocks being destroyed
  13. Active Redstone Wire (NESW) (13).png Blocks being placed
  14. Active Redstone Wire (NESW) (14).png Mobs and players teleporting or spawning
  15. Active Redstone Wire (NESW).png Mobs and players dying or an explosion

A way to set the frequency that a calibrated sculk sensor listens to is by placing a lectern with a 15-page written book inside it next to a redstone comparator connected to the calibrated sculk sensor and turning the page number to the specific frequency that is desired.



Java Edition:

SoundSubtitlesSourceDescriptionResource locationTranslation keyVolumePitchAttenuation
Block brokenBlocksOnce the block has brokenblock.sculk_sensor.breaksubtitles.block.generic.break0.90.9616
Block placedBlocksWhen the block is placedblock.sculk_sensor.placesubtitles.block.generic.place0.80.9616
Block breakingBlocksWhile the block is in the process of being brokenblock.sculk_sensor.hitsubtitles.block.generic.hit0.250.516
None[sound 1]Entity-DependentFalling on the block with fall damageblock.sculk_sensor.fallNone[sound 1]0.50.7516
FootstepsEntity-DependentWalking on the blockblock.sculk_sensor.stepsubtitles.block.generic.footsteps0.151.016
  1. a b MC-177082

Bedrock Edition:


Java Edition:

SoundSubtitlesSourceDescriptionResource locationTranslation keyVolumePitchAttenuation
Sculk Sensor starts clickingBlocksWhen a calibrated sculk sensor detects a vibrationblock.sculk_sensor.clickingsubtitles.block.sculk_sensor.clicking0.730.8-1.016
Sculk Sensor stops clickingBlocksWhen a calibrated sculk sensor deactivatesblock.sculk_sensor.clicking_stopsubtitles.block.sculk_sensor.clicking_stop0.620.8-1.016
Amethyst resonatesBlocksWhen an amethyst block re-emits a vibrationblock.amethyst_block.resonatesubtitles.block.amethyst_block.resonate1.0varies[sound 1]48
  1. Picks number from 0, 0, 2, 4, 6, 7, 9, 10, 12, 14, 15, 18, 19, 21, 22, or 24, and applies using the vibration's signal strength. It uses the same equation that note blocks do.

Bedrock Edition:

  1. Uses the same system as Java Edition.[verify]


October 12, 2020Brandon Pearce mentioned adding "habituation" to the skulk sensor.
Java Edition
1.1720w49aSculk Sensor (calibrated side texture) JE1.png Sculk Sensor (calibrated top texture) JE1.png Added unused textures for calibrated sculk sensor to the game files (specifically to the assets/minecraft/textures/blocks directory).
The top texture is a translucent version of the block of amethyst texture, where the side texture is composed of the sculk sensor's side texture overlayed on the amethyst texture.
The amethyst textures are based on those from 20w45a, despite these textures being added after the amethyst block textures were redone twice, implying these textures come from a scrapped functionality of the sculk sensor coupled with amethyst.
21w13aRemoved texture files from the game files.[1]
Upcoming Java Edition
1.2023w12aCalibrated Sculk Sensor JE1.gif Added calibrated sculk sensors.
23w14aCalibrated sculk sensors now detect vibrations up to 16 blocks radius instead of 8 blocks.
Calibrated sculk sensors now have 1 second active cooldown instead of 2 seconds.
Calibrated sculk sensors now accept signals into the calibration input side more consistently with other Redstone components.
Calibrated sculk sensors can now be activated by sniffer digging.
Calibrated sculk sensors can now glow when they trigger, just like a regular sculk sensor.
Default redstone output has been modified to be more reliable for distance calculations.
Calibrated sculk sensors can now strongly power the block they are placed on.
Upcoming Bedrock Edition
1.19.80beta Sculk Sensor BE1.gif Added calibrated sculk sensors.



Issues relating to "Calibrated Sculk Sensor" are maintained on the bug tracker. Report issues there.