Trivia: Torchwood is an anagram for Doctor Who, the show of which this series is a spin-off.
Trivia: The hand preserved in a glass jar in the Torchwood HQ is the severed hand of Doctor Who which he lost in a duel during the Christmas special. The hand features quite prominently in episode 1 but can also be seen in the background in most episodes.
Trivia: Eve Myles, who plays Gwen also plays the maid character Gwyneth in the Doctor Who (season one) episode "The Unquiet Dead."
Answer: Several times during the episode, most notably at the beginning when the old grave is discovered, Tosh holds a devise that looks a great deal like the Sonic Screwdriver that she uses to determine the age of the skeleton. However, a search of Google images shows that it is not the same thing.
OneHappyHusky