Calibrated Sculk Sensor

A calibrated sculk sensor is a craftable variant of the sculk sensor. Like its counterpart, it detects vibrations, but it has twice the range and can detect multiple vibrations in quicker succession. It outputs a signal on all sides except for its input, which can receive power to make the sensor listen only to specific vibrations, depending on the input signal strength.

Calibrated Sculk Sensor

Java Edition

Bedrock Edition

Renewable	Yes
Stackable	Yes (64)
Tool
Blast resistance	1.5
Hardness	1.5
Luminous	Yes (1)
Transparent	Yes
Waterloggable	Yes
Flammable	No
Catches fire from lava	No

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            "field": "<span class=\"sprite-file\" style=\"height:32px;width:32px;--vertical-align:middle\">(link to File:SlotSprite Hoe Required.png article, displayed as 32x32px|link=Hoe|alt=|class=pixel-image|This block can be broken with any tool, but a hoe is the quickest)</span>",
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            "field": "1.5",
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            "field": "Yes",
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            "field": "Yes",
            "label": "(link to Waterlogging article, displayed as Waterloggable)"
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            "field": "No",
            "label": "(link to Flammable article, displayed as Flammable)"
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            "field": "No",
            "label": "Catches fire from (link to lava article, displayed as lava)"
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        "Calibrated Sculk Sensor.gif",
        "Calibrated Sculk Sensor BE.gif"
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Obtaining

Breaking

A calibrated sculk sensor can be mined with any tool, but hoes are the quickest. It drops itself only if mined with any tool enchanted with Silk Touch. If mined with a non-Silk Touch tool, it drops 5 experience instead.

Block	Calibrated Sculk Sensor
Hardness	1.5
Tool
Breaking time (sec)
Default	2.25
Wooden	1.15
Stone	0.6
Iron	0.4
Diamond	0.3
Netherite	0.25
Golden	0.2
Options
Efficiency	0
Haste	0 JEBE

Legend

• incorrect tool, drops nothing
• correct tool, drops nothing or something other than the block itself
• correct tool, drops the block itself
• italicized can be instant mined

Crafting

Ingredients	[hide]Crafting recipe
Amethyst Shard + Sculk Sensor

Usage

When a calibrated sculk sensor detects a vibration, it is activated and emits redstone signal in every direction (including top and bottom), except the side with the amethyst stripe. The redstone signal emitted from the bottom will strongly power the block below the sensor, where as in all other directions (excluding the side with the amethyst stripe), it is as though the sensor itself is the strongly powered block.

An activated Calibrated Sculk Sensor. Only the block below the sensor is strongly powered. All other sides react as though the sensor itself were strongly powered, excluding the side with the amethyst stripe.

The calibrated sculk sensor is different from the basic sculk sensor in multiple ways:

• can detect vibrations within a distance of 16 blocks, instead of 8.
• is activated for 10 game ticks after detecting a vibration instead of 30 game ticks
• can be filtered (see below) to react only to some sounds.
• one side does not emit a redstone signal when activated (the side with the amethyst stripe).

When a calibrated sculk sensor detects a vibration, it is activated for 10 game ticks, then has a 10 game tick cooldown before it can detect another vibration. This means that a calibrated sculk sensor can detect a vibration once every 1.05 seconds, as opposed to once every 2.05 seconds for a regular sculk sensor. (Plus 0.05 for every block of distance from the vibration past the first.)

Filtering

When a redstone signal powers a calibrated sculk sensor on its crystalized side, the sensor is filtered to respond only to vibrations that match the strength of that signal. Every vibration in the game has a frequency associated with it, and every vibration frequency directly matches a specific redstone signal strength. For example, a vibration with a frequency of 5 matches the redstone signal with a strength of 5.

Some events can create multiple vibrations simultaneously. For example, eating most food items creates vibrations of frequency 3 (item interaction) and 8 (entity eats). Hitting the ground and taking fall damage creates vibrations of frequency 2 (hit ground) and 7 (entity damage). Using a redstone signal, the sensor can be filtered to detect either frequency. If no redstone signal is provided, the sensor detects the highest frequency.

Sculk sensor vibration frequencies

Redstone		Sounds with that frequency
Signal	Wire
1		Walking (not sneaking), climbing, jumping, swimming, crawling on a non-wool block.
2		Landing on any solid block (i.e. stone, a slime block, or a honey block) or in any liquid (water, lava, or powder snow).
3		Using an item (casting a fishing pole, throwing a snowball, drinking a potion, drinking milk, etc.).
4		A player gliding with an elytra, unequipping a piece of gear, or a mob performing a unique action (e.g. a ravager roaring, a wolf shaking, etc.).
5		Dismounting a mob or equipping a piece of gear.
6		Mounting a mob or interacting with a mob (e.g. trading with a villager, etc).
7		A mob or player taking damage.
8		Eating a food item.
9		A block 'deactivating' (e.g. closing a door or chest, a pressed button becoming unpressed, etc.).
10		A block 'activating' (e.g. opening a door or chest, a button being pressed, etc.).
11		A block changing (e.g. adding food to campfire, bell ringing, etc.).
12		A non-wool block getting destroyed.
13		A non-wool block getting placed.
14		A mob or player teleporting or spawning.
15		A mob or player dying, or an explosion happening.

Sounds

A calibrated sculk sensor is silent if waterlogged. It can still detect vibration, but does not produce sounds itself.

Generic

Java Edition:

[hide] v t e sculk_sensor sound type
Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	​Block broken	Blocks	Once the block has broken	block.sculk_sensor.break	subtitles.block.generic.break​	0.9	0.96	16
	​Block placed	Blocks	When the block is placed	block.sculk_sensor.place	subtitles.block.generic.place​	0.8	0.96	16
	​Block breaking	Blocks	While the block is in the process of being broken	block.sculk_sensor.hit	subtitles.block.generic.hit​	0.25	0.5	16
	​Something falls on a block	Entity-Dependent	Falling on the block with fall damage	block.sculk_sensor.fall	subtitles.block.generic.fall​	0.5	0.75	16
	​Footsteps	Entity-Dependent	Walking on the block	block.sculk_sensor.step	subtitles.block.generic.footsteps​	0.15	1.0	16

Bedrock Edition:

[hide] v t e sculk_sensor sound type
Sound	Source	Description	Resource location	Volume	Pitch
	Blocks	Once the block has broken	break.sculk_sensor	0.8	0.8-1.0
	Blocks	When the block is placed	place.sculk_sensor	0.8	0.8-1.0
	Blocks	While the block is in the process of being broken	hit.sculk_sensor	0.35	0.5
	Players	Falling on the block with fall damage	fall.sculk_sensor	0.4	1.0
	Players	Walking on the block	step.sculk_sensor	0.17	1.0
	Players	Jumping from the block	jump.sculk_sensor	0.12	1.0
	Players	Falling on the block without fall damage	land.sculk_sensor	0.14	1.0

Unique

Java Edition:

[hide] v t e Sounds
Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	​Sculk Sensor clicks	Blocks	When a calibrated sculk sensor detects a vibration	block.sculk_sensor.clicking	subtitles.block.sculk_sensor.clicking​	0.73	0.8-1.0	16
	​Sculk Sensor stops clicking	Blocks	When a calibrated sculk sensor deactivates	block.sculk_sensor.clicking_stop	subtitles.block.sculk_sensor.clicking_stop​	0.62	0.8-1.0	16
	​Amethyst resonates	Blocks	When an amethyst block re-emits a vibration	block.amethyst_block.resonate	subtitles.block.amethyst_block.resonate​	1.0	varies	48

Bedrock Edition:

[hide] v t e Sounds
Sound	Source	Description	Resource location	Volume	Pitch
	Blocks	When a calibrated sculk sensor detects a vibration	power.on.sculk_sensor	0.73	0.8-1.2
	Blocks	When a calibrated sculk sensor deactivates	power.off.sculk_sensor	0.62	0.8-1.2
	Blocks	When an amethyst block re-emits a vibration	resonate.amethyst_block	3.0	varies
None	None	Undefined sound event	block.sculk_sensor.clicking	1.0	0.73
	None	Undefined sound event	block.sculk_sensor.clicking_stop	1.0	0.62

Data values

ID

Java Edition:

Name	Identifier	Form	[hide]Translation key
Calibrated Sculk Sensor	calibrated_sculk_sensor	Block & Item	block.minecraft.calibrated_sculk_sensor

Name	[hide]Identifier
Block entity	calibrated_sculk_sensor

Bedrock Edition:

Name	Identifier	Numeric ID	Form	Item ID	[hide]Translation key
Calibrated Sculk Sensor	calibrated_sculk_sensor	835	Block & Giveable Item	Identical (Numeric: -580)	tile.calibrated_sculk_sensor.name

Name	[hide]Savegame ID
Block entity	CalibratedSculkSensor

Block states

Java Edition:

Name	Default value	Allowed values	[hide]Description
facing	north	east north south west	The direction the calibrated sculk sensor's amethyst input is facing. The opposite from the direction the player faces while placing the calibrated sculk sensor.
power	0	0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15	The calibrated sculk sensor's current power level.
sculk_sensor_phase	inactive	active cooldown inactive	Whether or not the calibrated sculk sensor is active.​
waterlogged	false	false true	Whether or not there's water in the same place as this calibrated sculk sensor.

Bedrock Edition:

Name	Metadata Bits	Default value	Allowed values	Values for Metadata Bits	[hide]Description
minecraft:cardinal_direction	Not Supported	south	east north south west	Unsupported	The direction the calibrated sculk sensor's amethyst input is facing. The opposite from the direction the player faces while placing the calibrated sculk sensor.
sculk_sensor_phase	Not Supported	0	0 1 2	Unsupported	The calibrated sculk sensor phase.​

Block data

A calibrated sculk sensor has a block entity associated with it that holds additional data about the block.

Java Edition:

• [NBT Compound / JSON Object]: Block entity data.
  • Tags common to all block entities see Template:Nbt inherit/blockentity/template[show]
  • [Int] last_vibration_frequency: The frequency of the last vibration.
  • [NBT Compound / JSON Object] listener: The vibration event listener for this sculk shrieker, sculk sensor, or calibrated sculk sensor.
    • [NBT Compound / JSON Object] event: Exists only if there is an incoming vibration.
      • [Float] distance: The distance between this vibration's source and the block.
      • [String] game_event: The resource location of the vibration event that caused the current incoming vibration.
      • [NBT List / JSON Array] pos: The coordinates of the source of this vibration.
        • [Double]: X coordinate.
        • [Double]: Y coordinate.
        • [Double]: Z coordinate.
      • [Int Array] projectile_owner: If the vibration was caused by a projectile, this is the UUID of the entity that launched the projectile. Does not exist if vibration was not caused by a projectile.
      • [Int Array] source: The UUID of the entity that caused the vibration. Does not exist if vibration was not caused by an entity.
    • [Int] event_delay: How many ticks remain until triggered by the vibration. Set to 0 if there is no incoming vibration
    • [NBT Compound / JSON Object] selector: The data of the vibration selector.​
      • [Long] tick: The game time when the vibration occurs, or -1 if there is no vibration to choose from.​
      • [NBT Compound / JSON Object] event: Candidate game event, with the same structure as the [NBT Compound / JSON Object] event tag above.​

Bedrock Edition:

See Bedrock Edition level format/Block entity format.

History

October 12, 2020							Brandon Pearce mentioned adding "habituation" to the sculk sensor.
[hide]Java Edition
1.17			20w49a				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 overlaid on the amethyst texture.
							However, the sculk sensor side texture used is actually the pre-release one shown in Minecraft Live 2020.
							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.
			21w13a				Removed texture files from the game files.
1.20			23w12a				Added calibrated sculk sensors.
			23w14a				Calibrated 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.
			23w16a				The model of the calibrated sculk sensor have been changed. The amethyst is now stretched to match the model of the amethyst cluster.
			23w17a				Now lasts 10 game ticks when in "Active" phase instead of 20.
							Now lasts 10 game ticks when in "Cooldown" phase instead of 1.
			23w18a				Landing or jumping on the edge of wool no longer triggers calibrated sculk sensors.
							Walking on the edge of blocks now properly triggers sculk sensors.
1.20.2			23w31a				Calibrated sculk sensors can now detect totems of undying activating.
							Calibrated sculk sensors can now detect witches drinking a potion.
							Calibrated sculk sensors can now detect turtles clearing away sand.
							Calibrated sculk sensors can now detect camels standing up, sitting down, or dashing.
			23w32a				Vibrations no longer risk being lost on simulation distance limit.
							Unequipping items emits a new unequip vibration of frequency 4.
							Chiseled bookshelves emit a block_change vibration of frequency 11 when receiving books from hoppers.
							Turtle eggs cracking emit a block_change vibration of frequency 11.
							Turtle eggs hatching emit a block_destroy vibration of frequency 12.
							Using bone meal emits an item_interact_finish vibration of frequency 3.
							Fire being doused by water potion emits a block_destroy vibration of frequency 12.
							Evokers evoking vexes or fangs emit an entity_place vibration of frequency 14.
							Carrots being eaten by rabbits emit a block_change vibration of frequency 11.
							Sweet berries being eaten by fox emit a block_change vibration of frequency 11.
							Camels eating cactus emit an eat vibration of frequency 8.
1.21			24w19a				Frosted ice being placed by Frost Walker emits a block_place vibration of frequency 13.
[hide]Bedrock Edition
1.19.80 Experiment Next Major Update			Preview 1.19.80.22				Added calibrated sculk sensors behind the "Next Major Update" experimental toggle.
1.20.0			Preview 1.20.0.21				Calibrated sculk sensors are now available without using the "Next Major Update" experimental toggle.
1.20.10			Preview 1.20.10.20				Calibrated sculk sensors can now detect the following events: Placing, rotating, or removing an item in an item frame or a glow item frame. Charging a respawn anchor. Scraping or applying wax to blocks of the copper block set. Switching a daylight detector to an inverted daylight detector or vice-versa. Adding food to a campfire. Adding or removing a music disc to a jukebox. Mud turning into clay. Harvesting sweet berries. Placing an eye of ender in an end portal frame. Bees entering or exiting a beehive or a bee nest. Interacting with composter. Attaching or detaching a lead from a fence. Attaching or detaching a lead from a mob. Dying a sheep. Picking glow berries. Farmland turning into dirt. Using a spawn egg on a monster spawner. Silverfish merging with blocks. Using a hoe on rooted dirt. Using a shovel to create dirt paths. Placing a door. Planting seeds in farmland.
1.20.30			Preview 1.20.30.20				Calibrated sculk sensors can now detect the following events: Throwing an eye of ender. Minecarts, consistently when moving on rails while empty. Collecting fish, axolotls, and tadpoles with buckets. Cleaning items in cauldrons. Dying leather armor in cauldrons. Tipping arrows in cauldrons. Using dyes to change cauldrons' water color. Non-player actors event when equipping shields in their off-hand slot.
			Preview 1.20.30.21				Calibrated sculk sensors can now detect the following events: Applying a nametag. Evokers summoning vexes or fangs. Chickens, frogs, and turtles laying eggs. Using bone meal. Chiseled bookshelves when books are inserted into them using hoppers. Extinguishing fire. Mounting or dismounting a vehicle. Rabbits eating carrot crops. Foxes eating sweet berry bushes. Unequipping armor. Placing a banner, bamboo sapling, lily pad, or a head. Placing frogspawns. Placing or adding sea pickles. Adding/destroying a turtle egg. Turtle eggs cracking.

Data history

[hide]Bedrock Edition
1.20.30			Preview 1.20.30.20				Calibrated sculk sensors now use the minecraft:cardinal_direction block state instead of direction.

Issues

Issues relating to "Calibrated Sculk Sensor" are maintained on the bug tracker. Issues should be reported and viewed there.

Java Edition

• MC-252482 – Sculk sensors and calibrated sculk sensors cannot detect TNT minecarts being ignited
• MC-261419 – Sculk sensors and calibrated sculk sensors detect ender pearl teleportation as player landing instead of teleportation
• MC-261424 – Sculk sensors and calibrated sculk sensors don't detect when players respawn
• MC-261652 – Sheep eating grass does not trigger calibrated sculk sensors as expected
• MC-274256 – Sculk sensors and calibrated sculk sensors at power level 14 do not detect natural spawns
• MC-274648 – Calibrated sculk sensors detect a witch drinking a potion at level 4 instead of level 3
• MC-275185 – Sneak 100 achievement can be unlocked with calibrated sculk sensor
• MC-276000 – Sneak 100 achievement can be unlocked with calibrated sculk sensor even when not calibrated for steps

Bedrock Edition

• MCPE-190469 – Calibrated sculk sensor amethyst model is not double-sided
• MCPE-169777 – Amethyst in calibrated sculk sensor is not stretched
• MCPE-171903 – Calibrated sculk sensor and sticky pistons not updating correctly
• MCPE-173005 – Calibrated sculk sensors at power level 14 do not detect natural spawns
• MCPE-176455 – Calibrated Sculk Sensor at frequency 11 doesn't detect certain block changes
• MCPE-182296 – Sculk Sensors and Calibrated Sculk Sensors aren't activating if a player is not close to them

Gallery

• 

  One interpretation of how the old texture could have looked.

• 

  Another interpretation.