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The powerometer is a device Princess Bubblegum used in the episode "The Tower" to measure the power of Finn's telekinetic arm. Apparently it can send out waves across Ooo to measure the power of any kind of energetic force. (This could include electricity, gravity, or perhaps the power of an opposing kingdom, though it is not clear.)
Appearance
It is a white sphere with two white handles, a gray button, an energy gauge and can also show holograms.
Birthday Boyfighter •
BMO and Ice King's valise •
Bottle binoculars •
Breakfast Porridge •
The Cake •
Crazy 4 Cuties •
Danny's boat •
Der Witz Und Seine Beziehung Zum Unter Bewussten •
Device for the Dissolution of Invisible Shields •
Dum Dum Juice •
Earl G. •
Elk's Heart •
Finn's birthday party games •
Finn's Vault •
Food Perfume "Apple" •
Giant toothbrushes •
Green Knight's Axe •
Gumbald's baseball caps •
Gumbald's goblets •
Gumbald's other mechs •
Gumbald's remote •
Gunter's puppets •
Healing Fungus •
La Femme du la Mer •
Love Bazooka •
Mechanical horse •
Megaphone •
Memory drive rocket •
Mr. Cream Puff's car •
Night Sword •
Nightmare Juice •
The Panzark •
Peanut •
Pickled Cheese •
Power-siphoning belts •
Sledgehammers •
Techno-harpoon •
Warren Ampersand's rocket •
X's tank •
Yak-drawn cart
