作動 さどう電圧 でんあつ表示 ひょうじ でしょう
sadōden'atsuhyōjikideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 作動電圧表示器

1. Probably a working voltage indicator.

Polite
Presumptive
Conjecture
Computing