You can enter the coordinates in the x y z field, save and press Teleport or walk over the block.
There is also a coordinatepaper that allows you to right click on a solid block to save the coordinates and right click to transfer them to the teleporter.
You can also choose which direction to look in once you've teleported yourself.
The teleporter does not need electricity.
Since you can teleport anywhere, this is dangerous as you can teleport under the map or into a block.
