is a test instrument designing company


Electronic Specialties Inc. manufactures timing lights, tachometers, multimeters, battery load testers, compression testers and vacuum gauges.


ESI was started in Milwaukee under the name Electro-Specialties, Inc. in 1967. For over 30 years, ESI has designed and engineered high quality test equipment for the automotive, small engine and industrial fields. The company name was later changed to Electronic Specialties, Inc.

ESI has produced OEM test equipment for many leading small engine manufacturers. Some of these are; Mercury Marine, Outboard Marine Corporation (OMC), Briggs&Stratton, Arctic Cat, Yamaha, Harley– Davidson and many others.

Beginning in 1982 the company expanded into the automotive aftermarket and through traditional distribution and export sales has sold well over 100,000 timing lights and over 200,000 multimeters. Other significant products include battery load testers, compression testers, vacuum gauges and tachometers

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United States 60046-6272
847 265 9489


Electronic Specialties Inc
Spring Grove IL
United States 60081

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