Modern electromechanical meters (1960s-present)
| Duncan (1901-1975) Landis&Gyr (1975-1998) Siemens PT&D (1998-2002) Landis+Gyr (2002-) |
General Electric (1892-) | Sangamo (1899-1975) Schlumberger (1975-2004) Itron (2004-) |
Westinghouse (1886-1990) ABB (1990-2002) Elster (2002-) |
| Singlephase | |||
| MQS / MQA | I-55S / I-55A | J3S / J3A | D2S / D2A |
| MS | I-60S | J4S | D3S |
| MX | I-70S | J5S | D4S |
| D5S | |||
| AB1 | |||
| Polyphase | |||
| MR | V-60 | P0 | D2 series |
| MT | S | D4 series | |
| SL | D5 series | ||
| ABS series | |||
| Switchboard | |||
| MR-WF | DS-50, DS-60 | PF | D2B |
| SF | D4B | ||
| SLF | D5B | ||
Electronic models on the next page.