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The Triad Spectacle is a merge of three different items, the Number Analyzer, Primality Lens and Parity Detector Rod using an anvil to merge.
It's base in the shape of a box, with multiple buttons, a power button, a small horizontal screen to analyze what number you are detecting, a button with the letter 'N', two small panels, one with 'o' and 'e', standing for Odd and Even, and another with 'I' and 'R', standing for Irrational and Rational. An antenna is also protruding from the box, and an automatic focusing lens stands on the base.
The horizontal panel tells what number you are detecting with the antenna, the panel with 'o' and 'e' will have either letter flash depending on if the focused number is odd or even, the other panel with 'i' and 'r' also do similar behavior, but flash only to tell if a number is irrational or rational. The gadget will also use its automatic lens to tell if a number is prime or composite by looking through the lens, or optionally to listen to the gadget either beep rapidly or beep continuously, rapidly means its prime, continuously will mean its composite. The button with the 'n' if pressed will either flash green or red depending if a number is natural.