Signalum security locks are items that can be installed on certain blocks and items to restrict who can access them.
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A signalum security lock can be installed on a block by using it on the block. It can be installed on an item by combining it with the item in a crafting grid.
When a signalum security lock is held in the player’s offhand, it is automatically installed on blocks when they are placed.
Installing signalum security locks only works on blocks and items that support it. Most blocks and items in Thermal Expansion that can contain items or fluids support signalum security locks.
A secured block or item can be in one of three modes:
The current mode can be set using the Security tab in the GUI of the block or item.
When dropped, a secured block or item cannot be destroyed by things like lava and cacti. However, it still despawns after a while.