0382774ワット発電中さん垢版2017/10/24(火) 16:20:54.19ID:+0FKalaS >>380 こんなやつっすかね? https://m.ebay.com/itm/Blue-Digital-Voltmeter-Panel-4-Wire-AC-0-500V-LCD-Alternating-Voltage-Meter-/172402287294