Dranetz Engineering Laboratories Inc.:
| Model | Date | Group | Description |
|---|---|---|---|
| 305 | Level Meter | Phasemeter | |
| 305-PA-3001 | Level Meter | Phasemeter Plug-In | |
| 305-PA-3002 | Level Meter | Phasemeter Plug-In | |
| 305-PA-3009 | 01 September 1976 | Network Analyzer | Network Analyzer |
| 305B | Level Meter | Phasemeter | |
| 305C | Level Meter | Phasemeter | |
| 305D | Level Meter | Phasemeter | |
| 626 | 01 October 1981 | Analyzer | UNIVERSAL DISTURBANCE ANALYZER |
| 646-1 | 01 January 1985 | Analyzer | Power line Disturbance Analyzer |
| 646-3 | 15 April 1988 | Analyzer | Power line Disturbance Analyzer |
| 656 | 01 January 1988 | Analyzer | Disturbance Waveform Analyzer |
| 656A | 01 January 1988 | Analyzer | Disturbance Waveform Analyzer |
| LPC 4300 | 04 January 1998 | Other |
