https://hoytmeter.com/analog-panel-meters/5000-series/vac.html
5000 Series Analog AC Voltmeters | Hoyt Meter
5000 Series Analog AC Voltmeters. Square, 1.5", 2.5" and 3.5". Optional custom dials. 2, 3, or 4 hole mounting to provide for interchanging with other similar...
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