Greenlee, part of Emerson’s professional tools portfolio, has introduced the IT-5 Insulator Tester to help transmission crews quickly assess high-voltage insulator condition with confidence. Building on the company’s legacy in high-voltage insulator testing, the IT-5 offers next-generation capability, delivering immediate, reliable feedback in the field.

In addition to detecting internal dielectric failures in porcelain and glass suspension insulators, the IT-5 detects contamination on all surface types, including porcelain, glass and polymer/composite. Insulator degradation can lead to outages, equipment damage and significant risk exposure, making accurate testing critical to system reliability and worker safety. Crews use the IT-5 during maintenance, inspection and installation work to verify insulator performance before continuing line operations. www.greenlee.com/us/en/it-5-insulator-tester