電でん圧あつ計けい

で

ん

あ

つ

け

い

Meanings

1

voltmeter

A device for measuring voltage. Technical term used in electronics and electrical engineering.

電でん流りゅう計けい
電流計 measures electric current (amperes), while 電圧計 measures voltage (volts).
テスター
テスター is a more general term for a multimeter that can measure voltage, current, and resistance, while 電圧計 specifically refers to a voltmeter.

Compound of 電圧 (voltage) + 計 (meter, gauge).