My favorite new gadget attaches to my keychain and goes everywhere I do — and it lets my phone see in the dark

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Through the app, its like I have Predator-like vision because it visualizes the scene based on heat signatures.

Hot spots show up in yellow and red, while cold spots are usually blue.

(Image credit: Future)

From about 200 feet away, I could make out a pair of heat signatures that were moving.

In a moments notice, I can instantly use it to see in the dark.

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(Image credit: Future)

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(Image credit: Future)