Specifications
| Model | SF72, AM-72, or SQ72 |
| Type | AC Analog Voltmeter (Moving Iron movement) |
| Dimensions (WxH) | 72mm x 72mm |
| Cutout Size | Approximately 68mm x 68mm |
| Measuring Range | 0-500V AC (direct connection, no external transformer needed) |
| Accuracy Class | Class 1.5% |
| Deflection | 90° scale arc |
| Operating Frequency | 45-65 Hz |
| Operating Voltage | 600V RMS max insulation voltage |
| Material | Plastic, Electronic Parts |