Ohio Semitronics, Inc.

The LEADER in power measurement

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800-537-6732 8000+ products

Since 1964, Ohio Semitronics Inc. (OSI) has been a pioneer in the field of power and energy measurement. Over the last years, Ohio Semitronics has developed the widest array of energy measurement devices and instrumentation available.

In addition to our 8,000+ standard catalog products, OSI is known worldwide for our custom, application-specific product solutions.

OSI News

Coming Soon: New industry specific satellite websites are coming! OSI is currently developing websites that cater specifically to the industries we serve. The first addition will be an Oil & Gas website, displaying the products and services we offer relating to the Oil & Gas industry. Read More

Featured Products

CTLC - Low Cost DC Current Transducer, Hall-effect, Open Loop
DVT7E - DC Voltage Transducer, DIN, User-Selectable Input Ranges
MFC150 Series - Flexible Rogowski Coils for AC or pulsed AC measurement applications.
Aplus - Multifunction Power Meter with I/O and Relay Control

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