LEM Instruments, Inc.
American Aerospace Controls
Meters & Instruments.com
AEMC Instruments
Watlow
E-Mon, LLC
Panel Components & Systems (PC&S)
NK Technologies
Ohio Semitronics Inc.
Weschler Instruments
Amprobe Div./Advanced Test Products
Hioki USA Corp.
Triatek Inc.
Eaton Electrical, Inc.
Sypris Test & Measurement, Inc. - FW Bell Magnetics Div.