LASERPWR 50mA Digital Ammeter 85C17 DC 0-50mA Panel Meter Current Frequency 50/60Hz for CO2 Laser Engraving Cutting Machine
https://www.vogueparade.com/shopping/EN/4338/1/1005003503372343/laserpwr-50ma-digital-ammeter-85c17-dc-0-50ma-panel-meter-current-frequency-5060hz-for-co2-laser-engraving-cutting-machine//