Mechanical Lens

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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Mechanical Lens
  • Mechanical Lens item sprite
Stack digit 1.png
TooltipGrants improved wire vision
RarityRarity level: 3
Buy1 GC
Sell20 SC
Research1 required
  • Internal Item ID: 3619 (Desktop, Console and Mobile versions)
Not to be confused with Mechanical Eye.
Inventory UI visibility icons
Mechanical Display toggle.png
Mechanical Display visibility icon
Actuators toggle.png
Actuator visibility icon
Red Wire toggle.pngBlue Wire toggle.pngGreen Wire toggle.pngYellow Wire toggle.png
Wire visibility icons

The Mechanical Lens is an informational accessory which will reveal placed wires and actuators. Each color of wire can be shown at maximum brightness, regular, or faded, which is configurable on the left side of the screen. The Mechanical Lens is purchased from the Mechanic for 1 GC.


Used in

ResultIngredientsCrafting station
The Grand DesignThe Grand Design(Desktop, Console and Mobile versions)Tinkerer's WorkshopTinkerer's Workshop


  • Unlike most accessories, informational accessories such as the Mechanical Lens do not need to be equipped in an accessory slot. The Mechanical Lens may be carried in the player's inventory without loss of functionality, unless equipped to a social slot. Additionally, the info it provides will be shared with nearby players of the same team in multiplayer. Keep in mind modifiers will no longer apply to the player when not equipped.
  • Having a Mechanical Lens in your inventory while exploring the Dungeon, Jungle Temple, or deep underground caverns will reveal wires and show you where dangerous traps are located. Carrying a Wire Cutter will allow you to disable the traps. The Grand Design will combine these features.