6 Line Monitor Manufacturers in 2025

Table of Contents

• What Is a Line Monitor?
• List of 6 Line Monitor Manufacturers
• List of 50 Line Monitor Products
• Global Distribution of Line Monitor Manufacturers by Country

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    • USi Manufacturer
      Power Donut Line Monitor

    • • Website
      • United States, Connecticut
      • Company Profile

    • Address: 3A Trowbridge Drive, Bethel, Connecticut, United States of America

    Manufacturer Overview

    Underground Systems, Inc. (USi), situated in Bethel, Connecticut, was founded in 1976 and is a manufacturer of advanced technology devices for electrical power distribution systems. Products include insulated cable ampacity software, pressurizing, circulation, cooling plants, and pressure pipe-type accessories for HPFF cable systems. It also offers services for system evaluation, employee training, system specifications, employee operating manuals, and complete project management. Additional services include dynamic ratings, diagnostics, real-time leak detection, round-the-clock leak monitoring, and new technology development.

• • 

    • AlphaLab, Inc. Manufacturer
      Power line monitor

    • • Website
      • United States, Utah
      • Company Profile

    • Address: 3005 South 300 West Salt Lake City, Utah, United States of America

    Manufacturer Overview

    AlphaLab, Inc. is an American manufacturer of scientific measurement devices established in 1993 and based in Salt Lake City, Utah. Under the brand name TRIFIELD, the company produces measurement tools for radio power density and electric fields (EMFs), USB gauss meter magnetometers, and monitors for electromagnetic interference (EMI) of single power lines or wall outlets. These are primarily used by research institutions and environmental organizations, but also have applications in the industrial and manufacturing sectors. Along with its products, the company offers additional meter calibration and PC data logging services for customers in need of additional support.

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    • Powertronics, a division of Eastern Time Designs, Inc. Manufacturer
      Power line monitor

    • • Website
      • Founded: 1985
      • United States, New Hampshire
      • Company Profile

    • Address: 143 Raymond Road, Unit #10, Candia, New Hampshire, United States of America

    Manufacturer Overview

    Powertronics, a branch of Eastern Time Designs with its headquarters in Manchester, New Hampshire, in the United States, , Inc., was founded in 1985 as a manufacturer of quality monitoring systems and related products. The products include receptacles, power line monitors, inkjet printing, wire cards, and inkjet printers. It also manufactures power line monitor accessories such as patch cords, converters, and modem cables. The company provides calibration and repair services, and its products are used in the institutional, network service, commercial, electrical, and medical markets.

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    • Lindsey Manufacturing Company Manufacturer
      Transmission Line Monitors

    • • Website
      • Founded: 1947
      • United States, California
      • Company Profile

    • Address: 760 N. Georgia Ave.Azusa, California, United States of America

    Manufacturer Overview

    Lindsey Manufacturing Company, since 1947, has been a manufacturer of energy transmitting and distribution equipment based in Georgia Avenue, Azusa, CA. The company produces hybrid systems comprising sensors, analytical software, and emergency restoration systems to increase the resilience of energy grids. It also produces Lindsey sensors with high-accuracy distribution class current, voltage sensors, and fully tested hardware for transmitting applications. The company is ISO 14001:2015, ISO 9001:2015, and CSA W47.2 certified.

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    • Surplus City Liquidators
      Line Voltage Monitor

    • • Website
      • United States, Indiana
      • Company Profile

    • Address: 510 Indianapolis Ave Lebanon, Indiana, United States of America
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    • Scotload Manufacturer
      Running line monitor

    • • Website
      • United Kingdom
      • Company Profile

    • Address: 8-10 Mariners Way,Cowes, Isle of Wight, United Kingdom

    Manufacturer Overview

    Scotload is a manufacturer of load-measuring and monitoring solutions for the lifting sector, located in Mariners Way, Cowes, UK, and established in 1994. The catalog has load link custom bundles, displays, load shackle custom bundles, and SmartLoad Software that help monitor data directly on the load cells. The company offers services such as hiring stock, repairs, and calibration in the production facility. It is part of the BES group and is a trading entity of British Engineering Services Asset Reliablity Strainstall Ltd.

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