Analog Synchroscope 120 Volt
| Order # | Scale | Normal Hz | Part # |
| 1D0093 | Slow-Fast | 50 | MCS 106 452 ABAA |
| 1D0094 | Slow-Fast | 60 | MCS 106 452 AAAA |
Digital Synchroscope 120 Volt, Relay
| Order # | Scale | Normal Hz | Part # |
| 1C9844 | + | 50-60 | MCS 106 452 DIGITAL |
+ Volts, Frequency, & Phase Angle
