Sensor

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Sensor
Stack digit 9.pngStack digit 9.pngStack digit 9.png
Logic Sensor (Day).png Logic Sensor (Night).png Logic Sensor (Player Above).png
Liquid Sensor (Water).png Liquid Sensor (Lava).png Liquid Sensor (Honey).png Liquid Sensor (Any).png


Sensors placed.gif
Statistics
Type FurnitureMechanism
Placeable Yes
Dimensions 1 wide ˣ 1 high
Use time 14 (Very Fast)
Rarity Rarity Level: 1
Internal Tile ID: 423
Desktop Version Desktop-Only Content: This information applies only to the desktop version of Terraria.

A Sensor is a Hardmode mechanism that emits a signal under specific circumstances. Currently, there are 7 different types of sensors. There are 2 sub-categories of sensors. There are Logic Sensors, and there are Liquid Sensors.

There are 3 different Logic Sensors:

  • Logic Sensor(Day) which emits a signal when night turns to day.
  • Logic Sensor(Night) which emits a signal when day turns to night.
  • Logic Sensor(Player Above) which emits a signal when a player enters the area above it, and emits another when the player leaves the area above it.

There are 4 different Liquid Sensors:

  • Liquid Sensor(Water) which emits a signal when submerged in water, deactivates otherwise.
  • Liquid Sensor(Lava) which emits a signal when submerged in lava, deactivates otherwise.
  • Liquid Sensor(Honey) which emits a signal when submerged in honey, deactivates otherwise.
  • Liquid Sensor(Any) which emits a signal when submerged in any liquid, deactivates otherwise.

Crafting[edit | edit source]

Recipes[edit | edit source]

Result IngredientsCrafting Station
Logic Sensor (Day).png
Logic Sensor (Day) Desktop Version
Internal Item ID: 3613
Soul of Light.pngSoul of Light (5) Mythril Anvil.png Mythril Anvil /
Orichalcum Anvil.png Orichalcum Anvil
Iron Bar.png Lead Bar.pngIron Bar or Lead Bar
Wire.pngWire
Logic Sensor (Night).png
Logic Sensor (Night) Desktop Version
Internal Item ID: 3614
Soul of Night.pngSoul of Night (5)
Iron Bar.png Lead Bar.pngIron Bar or Lead Bar
Wire.pngWire
Logic Sensor (Player Above).png
Logic Sensor (Player Above) Desktop Version
Internal Item ID: 3615
Soul of Sight.pngSoul of Sight
Iron Bar.png Lead Bar.pngIron Bar or Lead Bar
Wire.pngWire
Liquid Sensor (Water).png
Liquid Sensor (Water) Desktop Version
Internal Item ID: 3726
Cog.pngCog (5)
Magic Water Dropper.pngMagic Water Dropper
Wire.pngWire
Liquid Sensor (Lava).png
Liquid Sensor (Lava) Desktop Version
Internal Item ID: 3727
Cog.pngCog (5)
Magic Lava Dropper.pngMagic Lava Dropper
Wire.pngWire
Liquid Sensor (Honey).png
Liquid Sensor (Honey) Desktop Version
Internal Item ID: 3728
Cog.pngCog (5)
Magic Honey Dropper.pngMagic Honey Dropper
Wire.pngWire
Liquid Sensor (Any).png
Liquid Sensor (Any) Desktop Version
Internal Item ID: 3729
Cog.pngCog (5)
Magic Water Dropper.pngMagic Water Dropper
Magic Lava Dropper.pngMagic Lava Dropper
Magic Honey Dropper.pngMagic Honey Dropper
Wire.pngWire

Player Above Sensor[edit | edit source]

It has a 5 blocks wide and 10 blocks tall detection zone, although it is actually about 1-2 pixels bigger than that.

When a player moves into the zone, it sends a signal. When a player exits the zone, it also sends a signal.

Note : In multiplayer, if one player moves into the zone, and then another enters the same zone while the first player is still in the zone, the sensor will not send another signal, making it useful for automatic doors in multiplayer (where multiple players may pass the same door). The Player Above sensor will also trigger on the position of dead players until they respawn, which should be considered during Expert Mode planning in particular.

History[edit | edit source]

Furniture: Iron Anvil.png Crafting Stations • Candle.png Light Sources • Chest.png Storage Items • Pure Water Fountain.png Other Items