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*''[[The Wizarding World of Harry Potter]]''
*''[[The Wizarding World of Harry Potter]]''
*''[[J. K. Rowling's Official Site]]''
*''[[J. K. Rowling's Official Site]]''
==Notes and references==
==Notes and references==

Revision as of 03:48, December 21, 2012

"It's quite easy once you know how, one simple Freezing Charm on these absurd burglar alarms they use instead of Sneakoscopes and make sure the neighbours don't spot you bringing in the piano."
Horace Slughorn, when asked by Albus Dumbledore how he moves from house to house.[src]

A Sneakoscope is a type of Dark Detector that looks like a glass spinning top. It lights up, spins, and whistles if someone is doing something untrustworthy nearby.




Edgar Stroulger developing the Pocket Sneakoscope.

The Sneakoscope was invented in the eighteenth century by Edgar Stroulger.


Ron Weasley purchased a "pocket" Sneakoscope in Egypt in 1993 as a thirteenth birthday present for Harry Potter. Ron's brother Bill said it was just a piece of rubbish sold for tourists and did not work as it was whistling at their supper table. However, he had not realised that Fred and George had put beetles in his soup. It also lit up when Ron was tying Harry's birthday package to Errol's leg, as he was not supposed to use the old owl for long journeys. Later that year, Harry's Sneakoscope started whistling on the Hogwarts Express when Scabbers was nearby, as Scabbers was really Peter Pettigrew. Harry had to keep the Sneakoscope in a pair of Uncle Vernon's old socks to keep the whistling quiet.


"Professor Moody" had a large Sneakoscope in his office in Harry's fourth year at Hogwarts. He had to disable it because, he claimed, it was extra-sensitive and would whistle at any deceit as far off as a mile — not to mention students lying about their homework. Regardless of the truth of this claim, it would certainly have been activated by "Professor Moody" himself, as he was Barty Crouch Jr. in disguise.


A few Sneakoscopes (along with other detection devices) were present in the Room of Requirement while Dumbledore's Army was using it to practise. Sadly they proved of little help to the D.A. since when the Ministry finally discovered where they were, the authority's actions were very honest (albeit less than enjoyable for the D.A. members who were actually caught).


Hermione Granger gave Harry a Sneakoscope as a gift for his seventeenth birthday at breakfast, before a small celebration was held in his honour.[1]

The contraption later alerted Harry, Ron, and Hermione about the Snatchers outside of their tent after accidently saying the Dark Lord's name even though it was Tabooed. Unfortunately, it alerted the Snatchers that the trio was in the tent.

Sneakoscope jkrowlingcom

The Sneakoscope on

Behind the scenes


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