Mirror Polished Stirling Engine with Embedded Voltmeter and Output Port

NIKOLATOY Verified independent store

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This mirror-polished Stirling engine is powered entirely by heat energy — no internal battery, no external power source required. It includes an embedded voltmeter to measure gener ated output, along with tweezers, needles, and a hex wrench. The output port allows the generated electricity to power small external devices. Show more