%% Image selected per Image Pickin' thread: http://tvtropes.org/pmwiki/posts.php?discussion=1303663354083645200
%% Please do not change or remove without starting a new thread.
[[quoteright:350:[[Advertising/{{Nicorette}} http://static.tvtropes.org/pmwiki/pub/images/Suck-o-meter_1705.jpg]]]]

A speedometer measures how fast you go, a radiometer measures the radiant flux of electromagnetic radiation, and the Thing-O-Meter measures everything else.

Commonly seen as the Laugh-O-Meter or Applause-O-Meter, which is based on the [[http://en.wikipedia.org/wiki/Clap-o-meter Clap-O-Meter]] used in old game shows. There are thousands of variations, though-- Suck-O-Meter, Creep-O-Meter, Love-O-Meter, Sarcasm-O-Meter, basically Whatever-You-Want-O-Meter.

They're usually not very reliable, as their indicators are prone to [[ReadingsAreOffTheScale going off-scale]] or even [[ExplosiveInstrumentation breaking]]. They generally measure things on an AbstractScale.

Though popularized by game shows and the like, this trope is OlderThanRadio at the very least: William Hogarth's 1727 satirical engraving ''Masquerade Ticket'' features "a pair of lecherometers, showing the company's inclinations as they approach 'em."

Not to be confused with any of the meters used in games (like KarmaMeter). Compare ThingOMatic, TheLittleDetecto, EverythingSensor and TwentyPercentMoreAwesome.


* Nicorette's [[http://www.youtube.com/watch?v=0qeC568u27Y "Suck-O-Meter" ads]] (the page pic is one such ad).

* ''Film/{{Ghostbusters}}''. When the team goes after the library ghost Egon Spengler has a meter that reads PKE (Psycho Kinetic Energy) valences, which are apparently given off by ghosts. It's the one that has the "arms" go up when the PKE increases. When Venkmann goes into Dana's apartment, he brings an odd meter of some sort with a long pole that sucks in air, with a hand-pump. When Dana asks him about it, he only says that it's one of their "little toys". It's based on a real-life device called a "Bacharach Chemical Sniffer", once used to check for gas leaks and other things. One ''could'', in theory, use it to find evidence of a haunting (vapor trails and such), but con-man Venkman is only trying to look like he knows what he's doing.
* The movie ''ThatThingYouDo'' has an applause-o-meter that determines the winner of a band contest.
* In ''CloudyWithAChanceOfMeatballs'', the FLDSMDFR has a dangeometer to warn Flint if the food is going to over-mutate.
* In ''Film/MenInBlack'', Agent J comments that the Edgar Bug gets a 9 on his "Weird-Shit-O-Meter." Earlier, Agent K uses a small soil analyzer with a row of multicolored lights to determine what kind of alien he's dealing with. ("Green" apparently means "Bug.")

* ''Literature/{{Discworld}}'''s thaumometer, which measures a magical field in "thaums". Mind you, this is just a perfectly sensible piece of equipment for a wizard on a world run by magic.
** ''Discworld/MovingPictures'' has the resograph, a device designed by a wizard named [[PunnyName Riktor]] the Tinkerer to measure changes in the fabric of reality. On the Discworld, said fabric is a lot more flexible thanks to [[ClapYourHandsIfYouBelieve the power of belief]] and the TheoryOfNarrativeCausality. The name is a BrickJoke from an explanation that "thaums" are made of sub-particles called "resons", which is [[CanisLatinicus doggy-Latin]] for "thingies", so the resograph is literally a thing-o-meter. Riktor also invented the Mouse Counter[[note]]counts every mouse in the building[[/note]], the Rev Counter[[note]]as the previous one, but for priests[[/note]] and the Swamp Meter[[note]]usage never explained[[/note]].

* ''Series/QueenForADay'''s Applause Meter - TropeMaker if not UrExample.
* ''Dr. Fad'', a children's game show from the late 1980s which focused on creativity and using scientific knowledge to solve problems, had a round where the contestants brought their inventions (pre-made before the show), and explained and demonstrated the items. The audience reaction was measured with an on-screen meter, with the winner decided by how far to the right the needle went.
* Canadian teen talk show ''{{Jonovision}}'' had an applause-o-meter to determine how much of the audience agreed with the topic ''du jour''.
* On ''{{Frasier}}'', Niles snarks that the psychic debunker they've invited over will be bringing a "ghost-oh-meter" (hard "o"). Daphne rejoins that it's called a "ghost-ah-meter" (soft "o").
* In the ''Series/MysteryScienceTheater3000'' episode featuring ''Angel's Revenge,'' Tom Servo invents a Shame-O-Meter (pronounced "shuh-MAH-meh-ter") to measure the shame the actors in the film are feeling.
** In another episode, Joel invents the Steve-O-Meter, which measures whether a given idea [[ItsBeenDone has already been thought up by Steve Allen]].
* ''SavedByTheBell'' had a Love-O-Meter at [[LocalHangout The Max]].
* An Ascendometer is a self-contained, portable unit from the ''StargateVerse'' used to analyze neural activity in the brain. This allows people to judge how close to ascension someone is.
** Originally found on [=P3X=]-584 in ''Series/StargateSG1'', the device was named as such by Cameron Mitchell, leaving Samantha Carter wishing she had thought of it first.
** Assumably the very same device was used in ''Series/StargateAtlantis'' when they were monitoring how near to ascension Dr. Rodney [=McKay=] was during the events of 'The Tao of Rodney'.
* The Summarize Proust Competition on ''Series/MontyPythonsFlyingCircus'' uses a graph gauge to determine who can summarize Creator/MarcelProust's ''A La Recherche du Temps Perdu'' best. (No one can, so the prize goes to the girl with the [[FanService biggest tits]].)
** A variation has a man surrendering to police, claiming he's Atilla the Hun. He's asked to breathe into a Hunalzyer. Nothing happens, so he's proven to be Alexander the Great as he actually breathed into an Alexander the Greatalyzer.
* ''Series/TopGear''[='=]s [[http://www.youtube.com/watch?v=Yw7D9cDQqHo cock-o-meter]] measures how much of cock you are judging by the car you're driving. Hammond's BMW M3 [[ReadingsBlewUpTheScale tops it]].
* ''Hot Seat'' was a short-lived ABC game show from 1976 (which premiered the same day ''FamilyFeud'' did) in which married couples are attached to [[LieDetector lie detectors]] in answering questions about their married life.

* In the Youngblood Chronicles, a series of Music/FallOutBoy music videos, we see an Evil-Meter when [[spoiler:Patrick's being brainwashed to hate music]].

* One ''[[ComicStrip/TheFarSide Far Side]]'' strip has a dog pointing a device at a mailman which measures the subject's level of fear.

* [[Creator/MidwayGames Bally]]'s ''Pinball/DrDude'' has the Dude-O-Meter and the Jackpot-O-Meter.
* ''Pinball/FishTales'' has "Stretch The Truth", a gauge which measures how big the current catch really is from "5X Actual Size" to "Total Lie".
* ''Pinball/ScaredStiff'' is named after the "Stiff-O-Meter", which has ten levels from "Hair Raising" and "Pulse Pounding" up to "Heart Stopping" and [[TitleDrop "Scared Stiff"]].
* During the "Farley Claymore" mode in ''Pinball/TheShadow'', a "Hit-O-Meter" appears; making key shots results in Farley getting smacked and the meter getting emptied.
* ''Pinball/ThePartyZone'' has the "Rock-It Meter", which indicates how much fuel the player has collected by how far he will go, from the "Wisconsin State Line", past "The Edge of Reality", and up to "The NEW Frontier!"

* During his reign as Wrestling/{{WWE}} Intercontinental Champion, Santino Marella would rate himself against the longest-reigning IC champ in history, The Honky Tonk Man, using the "Honk-A-Meter".

* On an episode of ''Radio/ImSorryIHaventAClue'', the round of MorningtonCrescent ended with Humph announcing "According to our clapometer, Tim is the winner". Barry Cryer then added "Report to the clinic immediately".

* A strange old PC game called "How to be a Complete Bastard" has several meters including a "food-o-meter" and a "wee-o-meter". No need to say what those stand for.

* How do ''Webcomic/{{Homestuck}}'' trolls know how effective their trolling is? Kanaya uses the "[[http://www.mspaintadventures.com/?s=6&p=004595 Flighty Broads and Their Snarky Horseshitometer]]" in an exchange with Rose. It ends up exploding (after Rose goes OffTheRails and blows up her gate), because it simply couldn't take that much horseshit.
** You can't forget the Prankster's Gambit.
* In ''Webcomic/SluggyFreelance'', Torg is sent to Guantanamo Bay as an enemy combatant after airport security thinks [[NotWhatItLooksLike he's about to blow up a plane]]. He comes back claiming that he was set free when his Viking blood "sent their caucasiometer through the roof," so clearly he was too white to be a terrorist.

* Wiki/RationalWiki's [[http://rationalwiki.org/wiki/Irony_meter Irony Meter.]] Irony Meters are often mentioned on Website/FundiesSayTheDarndestThings, usually in in a ReadingsAreOffTheScale ExplosiveInstrumentation way.
-->Before reading one of karl's entries, for safety's sake I removed the irony meter from my computer and substituted a pair of [=LEDs=], for a simple binary readout. It didn't work. Somehow the [=LEDs=] transformed into high-powered lasers and were burning holes in things. Really thick things.
* In ''SonicTheHedgehog2SpecialEdition'', a clap-o-meter is used during the ClapYourHandsIfYouBelieve segment.
* Cybershell's LetsPlay of the Genesis Sonic games started each zone with a map and an overview of the enemies in the zone, each rated on how annoying it was using a "Cunt-o-meter".
* In Blog/AskKingSombra, Sombra rates Equestria's three Princesses by their bitchiness using [[http://25.media.tumblr.com/1c2fc451d0277b275694249d5174b6f0/tumblr_mo7fpq1OEb1rj4ht7o2_1280.png The Royal]] Bitch-o-meter. Coffee Talk later shows [[http://40.media.tumblr.com/7f86ac2f82933b9c878614e3b2d0dc10/tumblr_ntgtqzJSEP1rj4ht7o4_r1_1280.png the Crystal Ponies']] Royal Bitch-o-meter, in which Sombra ranks [[BrokeTheRatingScale 5000%]].
* The Nostalgia Critic once measured actors' performances on a [[HamAndCheese Not-Giving-A-Fuck-O-Meter]]. Apparently topped by Jeremy Irons in ''Dungeons and Dragons.''
* The Polish furry site [[http://polfurs.org Polfurs.org]] for many years featured a ''yiffometer'', a color scale in the menu bar, with a needle position depending on the number of ''Main/{{Yiff}}''-related words found in text of given page of the site.

* A laugh-o-meter features prominently in a the ''WesternAnimation/BatmanTheAnimatedSeries'' episode "Almost Got 'Im," where Joker rigs one up to an electric chair, straps Batman to it, and lets laughing gas leak into a studio audience.
* The CareBears have, of course, the Caring Meter, which monitors how much caring is going around on Earth. In some incarnations, it's the Care-O-Meter and can take more specific readings, such as the amount of caring within a particular individual at the moment.
* ''WesternAnimation/CloneHigh'''s official voting system for student council president is an applause-o-meter. This meant that, in a heated competition between Abe Lincoln and JFK for the presidency, the winner was [[TakeAThirdOption a random puppy who wandered on stage]].
* On ''WesternAnimation/{{Futurama}}'' Professor Farnsworth once pulled out a "cool-o-meter" which apparently measured coolness in [[HappyDays MegaFonzies]].
** On another occasion, he pulled out a "Doom-o-meter" that measures just how doomed something is, in Milidooms. Of course, 1000 Milidooms = 1 Doom.
** When Bender, Amy and Leela are at club looking for someone for Leela, Bender mentions he has [[https://www.youtube.com/watch?v=X4XzCP8sQqU "Gaydar"]] and can tell if someone is gay, unless he gets interference from a gay weather balloon.
* ''WesternAnimation/TheSimpsons'': Professor Frink's Sarcasm Detector.
-->'''Lyndsey Nagle:''' Do I detect a note of sarcasm?\\
'''Frink:''' [''With sarcasm detector''] Are you kidding? This baby is off the charts, [[VerbalTic mm-hai]].\\
'''Comic Book Guy:''' A sarcasm detector, that's a ''[[SarcasmMode really]]'' useful invention. [''[[ReadingsBlewUpTheScale Sarcasm detector explodes]]'']
** Frink has also brought his Frog-Exaggerator to [[StockNessMonster Loch Ness]], thinking he had brought his Monster-o-meter.
** Also from ''WesternAnimation/TheSimpsons'', in the "[[ShowWithinAShow spinoff]]" ''The Lovematic Grandpa'', wherein Grandpa Simpson dies and is reincarnated as a love testing machine at Moe's.
** Martin once built a device that accurately measured surprise as a school project. People learning what the device did registered "mild surprise". When they found out that Lisa had successfully turned Groundskeeper Willie into a gentleman, it went higher.
** When kids enter an audition for a singing contest not affiliated to ''AmericanIdol'' and produced by people who claim to have never heard of American Idol, Krusty uses an applause-o-meter so he won't have to pay attention to the songs.
* A season 2 episode of ''Laff-a-Lympics'' employed an applause meter to gauge which of the three teams would win a specific event. Mildew Wolf would hold his microphone to the camera, presumably for the viewers at home to vote by applause. Naturally, the Really Rottens got bupkis.

* As mentioned in the description, the [[http://en.wikipedia.org/wiki/Clap-o-meter Clap-O-Meter]], which was a feature on many game shows in the 60s and 70s. It was supplanted by more accurate forms of audience voting, like keypads.
** There's also the version without an actual meter - you "vote by your applause" and the judges decide who/what gets the loudest applause. Used often in Bikini contests.
* When discussing the development of the {{Wii}}, Miyamoto mentioned a theoretical "Wife-o-Meter" he used to measure his wife's increasing interest in video games over the years.
* Perhaps the most pervasive example ever would be the speedometer in your car.
* British election coverage always features the Swingometer, a needle that is turned from one major party to the other to indicate how many voters have switched their allegiance. Originally a cardboard prop (which was parodied in the election night sketch on ''Series/MontyPythonsFlyingCircus'' as spinning crazily around), it has more recently taken the form of CGI.
* As referenced in several of the examples above, various devices are described as being able to "test" how much two people love each other. There are stand-alone machines, sometimes seen in bars or arcades, there are pocket-sized ones (somewhat popular in Japan), and naturally several dozen written "tests" (frequently in magazines like ''Cosmopolitan'') which will supposedly rate how strong a relationship is.
** In 1979 inventor Carlisle Dixon patented a system for single people to identify potential friends/lovers in crowds. Each person programs a personal transceiver with musical, literary, and other preferences. When two such transceivers detect each other, the person carrying them is told how compatible they are.
* During the 1980s, the beginning of the drunk-driving-is-wrong awareness era (thanks to MADD and other organizations), bars would often install breath-alysers as a public service, so that patrons could know "when to say when." The practice was discontinued when people started using the machines to adjudicate who's-the-most-drunk contests.
* The id Tech 3-based games (''VideoGame/QuakeIIIArena'', ''VideoGame/CallOfDuty''), as well as engines derived from id Tech 3 (Infinity Ward's IW Engine) feature a Lag-O-Meter, which measures network lag during online play.