Trident Scanner

A Trident Scanner

A trident scanner was a 23rd century piece of Federation technology that was used for repairing power relays. (DS9: "Trials and Tribble-ations")

Spock used a trident scanner while he attempted to repair the Galileo, after the shuttlecraft had been brought down on the Companion's homeworld. The scanner, however, was short-circuited and destroyed by the Companion when Spock attempted to make physical contact with it. (TOS: "Metamorphosis")

In 2267, Ensign Harper used a trident scanner to connect the M-5 computer to the USS Enterprise's main power plant. He later attempted to disconnect M-5 with a trident scanner, but was vaporized by the advanced computer for his troubles. (TOS: "The Ultimate Computer")

The same year, Lieutenant Commander Montgomery Scott, leading a repair party aboard the USS Constellation, employed a trident scanner to cross-connect the Warp Drive control circuits to those of the Impulse Engines. (TOS: "The Doomsday Machine")

Another model of the trident scanner was still used aboard the USS Enterprise-A in 2287. (Star Trek V: The Final Frontier)