I am remaking this from V1, which I made during September.
Here is the original guide. I personally think it should be inproved:
Okay now back to the guide, first simple simple,
Place down a scanner(spawn pad) and set it to team 3
(why? because the spawn pad looks like the scanner but we can’t allow the person to spawn here)
Next place a button
(why? you want to scan yourself)
Next place a laser
0 damage and wire to button
(why? the laser looks like the scanner)
place a wire repeater and wire to laser with this:
(the scanner should turn off)
And you should be done!