Knick Interface LLC is the North American interface-technology arm of Knick, a company whose roots in electrical measurement go back more than 80 years. It supports customers with high-voltage measurement and signal-conversion solutions, backed by sales and service operations in California and product shipping from Ohio. Its quality management system is certified to ISO 9001:2015.
ISO 9001:2015
IQNet ISO 9001:2015
ISO 19443:2018 / KTA 1401 / KTA 3507
Compliance program
ATEX Production Quality Assurance Notification, Directive 2014/34/EU
Compliance program
IECEx Quality Assessment
Compliance program
ETI PrecisionSince 1994, ETI Precision has calibrated, repaired, and sold test-and-measurement equipment while manufacturing its own high-current circuit-breaker testers and variable power supplies. Its ISO/IEC 17025:2017-accredited team provides on-site calibration in all 50 states, bringing specialized expertise to high-current and high-voltage equipment while helping customers limit downtime. ETI Precision is part of the Accredited Labs network and also holds ISO 9001:2015 accreditation.FREDERICK, MD
Ohio Semitronics, IncSince pioneering the first Hall Effect electrical measurement devices in 1964, Ohio Semitronics has designed and manufactured custom electrical measurement devices and transducers in the United States. The company turns difficult measurement requirements into working prototypes in as little as three weeks, and has supplied more than 400 measurement devices for over 300 surface and subsurface vessels, along with other defense systems. Ohio Semitronics is an ISO 9001:2015-certified, ITAR-compliant manufacturer with NIST 800-171 certification.HILLIARD, OH
Fluke CorporationKnown for precision measurement, Fluke Corporation is a manufacturer based in Everett, Washington, serving technicians who need dependable answers from their instruments. The company’s portfolio now includes the former Prüftechnik and Azima businesses, bringing more than 50 years of vibration data into its condition-monitoring work. Fluke maintains ISO 9001:2015 certification across its North American sites and operates calibration laboratories accredited to ISO/IEC 17025.CLEVELAND, OH
High Voltage, IncFrom its Hudson Valley factory, High Voltage, Inc. designs and manufactures portable high-voltage test equipment used to check electrical cables, apparatus, and rotating machinery. The company brings three generations of engineering experience to a vertically integrated 27,000-square-foot operation in Copake, where it produces and services more than 1,000 instruments a year for customers worldwide. HVI has made equipment for the rotating-machine industry since 1998 and supports its products with factory technical assistance.COPAKE, NY