Calibrated Sculk Sensor

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
Map color	23 COLOR_CYAN
Note block instrument	Default (Harp)

A calibrated sculk sensor is a craftable type of sculk sensor that functions similarly, but detects vibrations more often and from further away. Its amethyst-covered input side can be powered to make the sensor only detect vibrations from specific sources, depending on the signal strength used. Placing an amethyst block next to a calibrated sculk sensor allows it to "relay" detected vibrations to sculk sensors or other calibrated sculk sensors.

Obtaining

Breaking

A calibrated sculk sensor can be broken 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)[A]
Default	12.25 (JE) 2.25 (BE)
Wooden	11.15 (JE) 1.15 (BE)
Stone	10.6 (JE) 0.6 (BE)
Copper	10.45 (JE) 0.45 (BE)
Iron	10.4 (JE) 0.4 (BE)
Diamond	10.3 (JE) 0.3 (BE)
Netherite	10.25 (JE) 0.25 (BE)
Golden	10.2 (JE) 0.2 (BE)
Options
Efficiency	000
Haste	001 1JEBE

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	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, whereas in all other directions (excluding the side with the amethyst stripe) it is as though the sensor itself is the strongly powered block.

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.)

A calibrated sculk sensor can activate a sculk shrieker within a distance of 8 blocks and if the sculk shrieker is naturally generated, it can cause a warden to spawn.

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.

Vibration frequency

Each vibration in the game falls under a certain frequency value. This value can be measured with a comparator. With the right contraption utilizing a calibrated sculk sensor or sculk sensor, the player could detect if a certain action has occurred or is occurring nearby.

Output	Vibration type	Game event	Description
1	Step	minecraft:step	Player or entity steps
	Swim	minecraft:swim	Player or entity swims, or boat paddles
	Flap	minecraft:flap	Entity flaps (bat)
	Resonate 1	minecraft:resonate_1	Block of amethyst re-emits a vibration with a frequency value of 1
2	Projectile Land	minecraft:projectile_land	Projectile lands (Snowball hits a block)
	Hit Ground	minecraft:hit_ground	Player or entity hits ground after a jump or fall
	Bounce	minecraft:bounce	Player or entity bounces off a slime block or a bed
	Splash	minecraft:splash	Player or entity splashes in water, enters water or enters bubble column
	Resonate 2	minecraft:resonate_2	Block of amethyst re-emits a vibration with a frequency value of 2
3	Item Interact Finish	minecraft:item_interact_finish	Any interaction using a shield, spyglass, or bone meal
	Projectile Shoot	minecraft:projectile_shoot	Projectile is shot (can be an arrow, a firework, etc.)
	Instrument Play	minecraft:instrument_play	Goat horn plays
	Resonate 3	minecraft:resonate_3	Block of amethyst re-emits a vibration with a frequency value of 3
4	Entity Action	minecraft:entity_action	Entity roars (Ravager), entity shakes water off (wolf after swimming), entity holds or stops holding item (Villager, copper golem, fox, allay), sniffer digs, armadillo rolls up or unrolls, or creaking stops or starts moving
	Elytra Glide	minecraft:elytra_glide	Player glides
	Unequip	minecraft:unequip	Armor gets unequipped from an armor slot or an armor stand
	Resonate 4	minecraft:resonate_4	Block of amethyst re-emits a vibration with a frequency value of 4
5	Entity Dismount	minecraft:entity_dismount	Player dismounts from a mount or vehicle
	Equip	minecraft:equip	Armor gets equipped to an armor slot or an armor stand
	Resonate 5	minecraft:resonate_5	Block of amethyst re-emits a vibration with a frequency value of 5
6	Entity Mount	minecraft:entity_mount	Player mounts a mount or vehicle
	Entity Interact	minecraft:entity_interact	Player interaction with entity (breeding)
	Shear	minecraft:shear	A sheep, mooshroom, or bogged gets sheared
	Resonate 6	minecraft:resonate_6	Block of amethyst re-emits a vibration with a frequency value of 6
7	Entity Damage	minecraft:entity_damage	Entity takes damage
	Resonate 7	minecraft:resonate_7	Block of amethyst re-emits a vibration with a frequency value of 7
8	Drink	minecraft:drink	Entity drinks (i.e. uses a bottled liquid or milk bucket)
	Eat	minecraft:eat	Entity eats. This includes players eating items, sheep attempting to eat grass, and pandas finishing eating bamboo. Not triggered by horses grazing, players feeding other animals, or frogs eating slimes and magma cubes
	Resonate 8	minecraft:resonate_8	Block of amethyst re-emits a vibration with a frequency value of 8
9	Container Close	minecraft:container_close	Container (chest, barrel, shulker box) closes
	Block Close	minecraft:block_close	Door, trapdoor, or fence gate closes
	Block Deactivate	minecraft:block_deactivate	Block deactivation (piston retracts, lever is switched off, button or pressure plate turn off)
	Block Detach	minecraft:block_detach	Tripwire gets detached from a tripwire hook
	Resonate 9	minecraft:resonate_9	Block of amethyst re-emits a vibration with a frequency value of 9
10	Container Open	minecraft:container_open	Container (chest, barrel, shulker box) opens
	Block Open	minecraft:block_open	Door, trapdoor, or fence gate opens
	Block Activate	minecraft:block_activate	Block activation A piston, button, lever, or pressure plate is powered, or potent sulfur erupts. Not triggered by a crafter, dispenser, dropper, or jukebox
	Block Attach	minecraft:block_attach	Tripwire gets attached to a tripwire hook
	Prime Fuse	minecraft:prime_fuse	TNT block or creeper is ignited
	Note Block Play	minecraft:note_block_play	Note block plays a note
	Resonate 10	minecraft:resonate_10	Block of amethyst re-emits a vibration with a frequency value of 10
11	Block Change	minecraft:block_change	Block changes state (chiseled bookshelf, lectern, composter, decorated pot, bell ringing, cake, item frame etc.)​
	Resonate 11	minecraft:resonate_11	Block of amethyst re-emits a vibration with a frequency value of 11
12	Block Destroy	minecraft:block_destroy	Block destruction Triggered by block breaking, removing a block required to support it, or pushing it with a piston (if the block is broken when moved). Not triggered when blocks are destroyed by an explosion.
	Fluid Pickup	minecraft:fluid_pickup	Liquid is picked up into a glass bottle or empty bucket (i.e. the bottle or bucket is used, filling it with water, lava, milk, honey, powder snow, or a potion from a cauldron‌[Bedrock Edition only])
	Resonate 12	minecraft:resonate_12	Block of amethyst re-emits a vibration with a frequency value of 12
13	Block Place	minecraft:block_place	Block placement
	Fluid Place	minecraft:fluid_place	Fluid placement
	Resonate 13	minecraft:resonate_13	Block of amethyst re-emits a vibration with a frequency value of 13
14	Entity Place	minecraft:entity_place	Entity placement Triggered by vehicle, armor stand, or item frame is placed; or a mob is spawned via spawn egg, mob spawner, creaking heart, or evoker magic Not triggered by random mob spawning or breeding
	Lightning Strike	minecraft:lightning_strike	Lightning strikes
	Teleport	minecraft:teleport	Endermen, shulker, or player eating a chorus fruit teleports. Not triggered by wolves, cats, or ender pearls.
	Resonate 14	minecraft:resonate_14	Block of amethyst re-emits a vibration with a frequency value of 14
15	Entity Die	minecraft:entity_die	Entity dies or is broken (vehicle, armor stand, or item frame), firework finishes
	Explode	minecraft:explode	TNT, end crystal, bed, respawn anchor, creeper, ghast fireball, wind charge or wither skull explodes
	Resonate 15	minecraft:resonate_15	Block of amethyst re-emits a vibration with a frequency value of 15

Piston interactivity

Calibrated sculk sensors cannot be moved by pistons or sticky pistons.

Vibration resonance

When a calibrated sculk sensor detects a vibration, any adjacent block of amethyst re-emits a vibration of the same frequency that the calibrated sculk sensor detected, which can be detected by sculk sensors and other calibrated sculk sensors. If the calibrated sculk sensor is filtered, the block of amethyst re-emits only the vibrations matching the filtered redstone signal strength.

Shape of detection bubble

For reference, here is the range of a calibrated sculk sensor at each y-level:

Sounds

A calibrated sculk sensor is silent if waterlogged. It can still detect vibrations (and transmit them to blocks of amethyst and sculk shriekers), but does not produce audible sounds nor the associated subtitles.

Generic

Java Edition:

sculk_sensor sound type
Sound	Closed captions	Source	Description	Identifier	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​[until: JE 26.4]	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:

sculk_sensor sound type
Sound	Closed captions	Source	Description	Identifier	Translation key	Volume	Pitch
	​Block broken	Blocks	Once the block has broken	break.sculk_sensor	subtitles.block.generic.break​	0.8	0.8–1.0
	​Block placed	Blocks	When the block is placed	place.sculk_sensor	subtitles.block.generic.place​	0.8	0.8–1.0
	​Block breaking	Blocks	While the block is in the process of being broken	hit.sculk_sensor	subtitles.block.generic.hit​	0.35	0.5
	​Footsteps	Players	Falling on the block with fall damage or the player flying with elytra	fall.sculk_sensor	subtitles.block.generic.footsteps​	0.4	1.0
	​Footsteps	Players	Walking on the block	step.sculk_sensor	subtitles.block.generic.footsteps​	0.17	1.0
	​Footsteps	Players	Jumping from the block	jump.sculk_sensor	subtitles.block.generic.footsteps​	0.12	1.0
	​Something falls on a block	Players	Falling on the block without fall damage	land.sculk_sensor	subtitles.block.generic.fall​	0.14	1.0

Unique

Java Edition:

Bedrock Edition:

Data values

ID

Java Edition:

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

Name	Identifier
Block entity	calibrated_sculk_sensor

Bedrock Edition:

Name	Identifier	Numeric ID	Form	Item ID[i 1]	Block tags	Translation key
Calibrated Sculk Sensor	calibrated_sculk_sensor	835	Block & Giveable Item[i 2]	Identical[i 3] (Numeric: -580)	minecraft:is_hoe_item_destructible	tile.calibrated_sculk_sensor.name

Name	Savegame ID
Block entity	CalibratedSculkSensor

Block states

Java Edition:

Bedrock Edition:

Block data

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

Java Edition:

Bedrock Edition:

See Bedrock Edition level format/Block entity format.

Videos

History

Mention

Java Edition

Java Edition
1.17			20w49a				Added unused textures for calibrated sculk sensor to the game files (specifically to the assets/minecraft/textures/block 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]
1.20			23w12a				Added calibrated sculk sensors.
			23w14a				Calibrated sculk sensors now detect vibrations up to a 16 block radius instead of 8 blocks.
							Calibrated sculk sensors' active cooldown has been reduced from 2 seconds to 1 second.
							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 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 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.[2]
							Walking on the edge of blocks now properly triggers sculk sensors.[3]
1.20.2			23w31a				Calibrated sculk sensors can now detect totems of undying activating.
							Calibrated sculk sensors can now detect the following events: Witches drinking a potion. Turtles clearing away sand. 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.
26.2			snap1				Entities bouncing off of blocks or a collidable entity will emit a vibration frequency of 2.

Bedrock Edition

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 copper blocks. Switching a daylight detector's state Adding food to a campfire. Adding/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/detaching a lead from a fence or 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 moving on rails, consistently 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

Issues

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

Gallery

• 
  One interpretation of how the old texture could have looked
• 
  Another interpretation

References