ðɪs vˈɜːʒən kˈɛpt mˈoʊst əv ðə sˈɜːkɪtɹi ðə sˈeɪm, bˌʌt ˈædᵻd ɐ vˈoʊltɪdʒsˈɛnsᵻtˌɪv kˈɑːpɚ plˈeɪt ɐfˈɪkst tuː, ænd ɛkstˈɛndɪŋ dˈaʊnwɚd fɹʌmðə bˈɑːɾəm ʌvðə jˈuːnɪt.
This version kept most of the circuitry the same, but added a voltage-sensitive copper plate affixed to, and extending downward from the bottom of the unit.