As a leading manufacturer of test switches and instruments for testing electric metering installations for over 50 years, TESCO is pleased to introduce our newest addition to the test switch family. Our new line of test switch isolators are perfect for isolation of an open test jack. Available in 2 ergonomic models, one with handle and one without, both are manufactured with the same TESCO durability and ruggedness that you have come to expect. These isolators are a perfect compliment to our Catalog 1077 Test Plugs and the Catalog 6441 Test Switch Protectors.

TESCO is committed to the development of all of our instruments to meet the needs of today's utility market. If you are currently using older model TESCO equipment, please contact us to learn how your product is evolving.