From Wikipedia, the Free Encyclopedia.
Teleportation, or Teletransportation, is the theoretical transfer of matter or energy from one point to another without traversing the physical space between them. It is a common subject of science fiction literature, film, and television.
From the Terraria Wiki:
The Teleporter allows for instant transmission between two Teleporter pads linked with Wire. As of 1.2.3 patch, wires have unlimited worldwide access, so there is no distance limit.
Placing a pressure plate on top of a teleporter creates an instant teleporter, so players don't need to rely on manually clicking levers or timers.
By attaching wire to each side, Teleporters can be chained together to provide long distance transportation. Using the alternate coloured Wires, a single Teleporter pad can be connected up to six other pads.
If more than two Teleporters are connected with a single wire, only two will activate; see the section below for more details.
Teleporters provide a blinking light source, somewhat dimmer than a Torch, alternating from off to illuminated at one second intervals.
Teleporters can only be purchased from the Steampunker but will function normally if taken to other pre-hard mode worlds.
The blocks composing a teleporter can be shaped using a hammer. Flattening a teleporter to half blocks will affect the area in which entities will teleport and their position after teleporting, as these are both relative to the teleporter's top surface.