The Dimensional Rift Alarm was built by Donatello. It appears in the Saturday Morning Adventures comic series.
History[]
After learning from Professor McGuffin of the meteorite stolen by Shredder from TCRI, Donatello realizes that Shredder must mean to carve something dangerous out of it. The Turtles head back to the lair and Don utilizes his computer to attempt to track when Shredder and/or Krang will open the next dimensional portal. Swapping Pads, part 1
In Donatello's lab, he attempts to use a Dimensional Rift Alarm to track where Shredder is with the shattered pieces of the second Forever Sword, but the machine returns an error. He states that they might need to have Shredder use the sword in a manner that produced a large amount of energy so they can have a chance to find him. In the middle of Long Island, Shredder stands with the Forever Sword and prepares to summon the Technodrome in front of Krang, Bebop, and Rocksteady. However, he had a vision during his trip back from the past, and instead summons an upgraded Technodrome from the future. This trigger's Don's Dimensional Rift Alarm, and the Turtles prepare to head out. Leonardo says they can use the second Forever Sword to instantly get to Long Island, and Michelangelo proposes they use super glue to put it back together. The Two Swords Meet