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.

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