polarity testing700+ factories verified

Wuhan Kaidi Zhengda Electric is a high-tech enterprise integrating research and development, production and sales of power testing equipment, instruments and power online monitoring systems. Provide a variety of types of high-tech power testing products, and in high voltage testing to provide users with a full set of electrical test equipment, to solve the power equipment supporting solutions.

Kiyu Power Wuhan Co., Ltd is a high-tech enterprise professionally engaged in R & D, manufacture, and marketing of power testing products, instruments, power industry automation systems, which are supplied for national power companies, metallurgy petrochemical corporations, factories and public institution.

Suzhou Crown Electronic Technology Co., Ltd. Was founded in 2013 in Kunshan City, Jiangsu Province, China. We are a modern high-tech enterprise integrating R& D, production and sales.   It's a Professional & Leading Wire Harness Equipment Manufacturer, in China, the company covers an area of over 5, 000 square meters.

Xian XZH Electric Power Technology Co., Ltd. is located in the Eastern development zone of Xi'an City, Shaanxi Province, China, . Xi'an, is reputed as the most time-honored city with 13 dynasties for about 2000 years

HAOMAI Electric Power Automation - Expert in Relay Testers & CT AnalyzersCompany OverviewWuhan HAOMAI Electric Power Automation Co., Ltd. (brand: Relaystar) is a leading manufacturer of relay protection testers, CT analyzers, and power testing equipment. Established in 1999, HAOMAI specializes in high-precision devices for utilities, substations, and industrial power systems.

Our company is specialized in high voltage test equipment, power measurement and test equipment and instrumentation, substation online monitoring system and related software products R & D, design, production, sales and service.

Wuhan UHV Power Technology Co., Ltd., established in 2021, located in Wuhan East Lake New Technology Development Zone is also named Wuhan Optical Valley with convenient transportation access. And We have self-operation export and import rights.

Who We Are

Delta Technology (Chongqing) Co., Ltd. is a professional and leading supplier of high-precision testing instruments, serving customers in electrical engineering, fire safety, and underground engineering with reliable, high-performance solutions.

DEMIKS Electric Power Technology Co., Ltd  committed to the research, development, manufacturing and sales of power transmission equipment, distribution equipment and high-voltage testing equipment.

Shanghai Sosin Electronics (EMCSOSIN)/ Shanghai Shinegil is a leading high-tech enterprise that specialized in R& D, manufacturing, selling EMC test equipment and service providing. We've been committed to the electromagnetic compatibility (EMC) testing field, offering professional equipment which are widely used in electronics manufacturing, electric power, new energy, telecommunication, aerospace, teaching, renewable energy, automotive and other industries, as well as scientific research. We also provide customers with professional EMC system integration solutions.

HV Hipot Co. Is a high-tech enterprise professionally engaged in R & D, manufacture, and marketing of power testing products, instrumentations, power industry automation systems, which are supplied for national power companies, metallurgy petrochemical corpations, factories and public institution.

Beijing GFUVE Electronics Co., Ltd. Was established in 2005. It combined science, industry and trade together as one high-tech enterprise. GFUVE mainly produces split core current transformer, high voltage ammeter recorder, IEC61850 test suite software, meter test equipment, current probe, reference standard meter, phantom load power source, electrical measurement instrument, relay test set, transformer test, CT analyzer, Test equipment, and power meter, power analyzer, intelligent digital meter, transducer, handheld terminal and split core current transformer, voltage transformer and current transformer models etc.

EP Hipot Electric Co., Ltd has rich experience of more than 20 years in R& D, manufacturing and marketing of market-leading high voltage test equipment. Passion, knowledge, expertise and technology drive us to help our customers all over the world, to maintain their assets value, improve their reliability, reduce maintenance costs and extend working life of the electrical systems and related apparatus. Our application specialists also perform on site trainings and workshops in order to share our knowledge with customers. We maintain quality control so that you can trust our products and receive expert help in selecting or servicing equipment. We are proud of the work we do to help utilities and electrical contractors keep the lights on and protect critical loads all over the world.

Refine On (Hebei) Electric Power Technology Co., Ltd. is strategically located in the Mancheng High-tech Development Zone of Baoding City-a core area renowned for its agglomeration of high-tech enterprises in North China, boasting convenient transportation networks, abundant talent resources, and a supportive industrial ecosystem for technological innovation. Rooted in this fertile ground for development, the company has fully dedicated itself to the high-tech field of power system automation, focusing on the R&D, production, and promotion of cutting-edge products that address the core needs of the power industry. Its product portfolio covers a comprehensive range of solutions, including power system marketing measurement equipment (such as intelligent electric meters, metering verification devices, and load management terminals), operation and maintenance high-voltage testing instruments (like transformer oil BDV testers, high-voltage insulation resistance testers, and partial discharge detectors), distribution network testing tools (including feeder automation testers, fault locators, and cable testing equipment), power consumption inspection devices (such as electricity theft detection instruments and energy efficiency analysis tools), as well as a full line of specialized tools and meters. As a technology-driven enterprise integrating R&D, production, sales, and after-sales service, it has established a one-stop service system to ensure that every link from product conception to user application is seamlessly connected and of high quality.

Wuhan Huadian Hi-Tech Electrical Equipment Co., Ltd. (abbreviated as Huadian Hi-Tech), established in 2007 through the corporatization restructuring of the tertiary subsidiary of the former Wuhan High Voltage Research Institute, is a high-tech enterprise. Its predecessor, Wuhan High Voltage Research Institute Huadian Electric Company, founded in 1991, was among China's earliest manufacturers of high-voltage testing equipment.

Sinopower was established in 2011. We supply various products in the hydrogen energy industry chain, including but not limited to hydrogen production, hydrogen storage, hydrogen supply, electric maintenance and BOP parts, fuel cell system assemblies, fuel cell vehicles, etc.

Hengfeng Electric power equipment(Jinan) Co., Ltd is established in year of 2006, located at Jinan city, Shandong province, China. Hengfeng Electric is a professional manufacturer engaged in the research development production, sale and service of electric power systems.

High-Performance Electrical Test Pens for Professionals

Weshine Electric Manufacturing Co., Ltd. Founded in 2013 with a registered capital of 80.5 million, is a modern high-tech enterprise specializing in the research and development, production, sales and service of power system automation devices and test instruments The company has strong technical force and complete testing equipment. The enterprise covers an area of 1200 square meters, including 800 square meters of production workshop. The company now has 98 employees, including 30 engineering and technical personnel and 4 safety supervisors in the production process, the company gives full play to its technical advantages and strictly controls the quality, effectively improving the technical content of the products and the reliability and safety of the products. The products have been tested by the national authoritative department, and the technical indicators have reached the national standards. The company in line with the professional, innovative, integrity concept and customer first service attitude, continuous improvement, strive to develop, and work together with domestic and foreign counterparts to create a better tomorrow. We are looking forward to cooperating with you sincerely and making great plans together.

Shenzhen VILVA Electronic Co., Ltd was established in 2010, when new energy was rising, based on toughness and persistence, grown up as a group company, onsisting of three wholly-owned subsidiaries and a shareholding subsidiary. The group headquarters is located in Shenzhen City, is a core city in Guangdong-Hong Kong-Macao Greater Bay Area and is known as an Innovative design capital. And its

Since 2015 and based in Baoding, China, Lucyelec Test Equipment Co., Ltd. is a distinguished leader in the field of oil analysis and electrical testing equipment. As a reliable partner and professional supplier, we specialize in offering high-quality test and measurement instruments to meet a diverse range of industry needs.

Chongqing Gold Mechanical & Electrical Equipment Co., Ltd is a high-tech enterprise for researching, designing, developing and producing scientific and measuring instruments. With its continuous drawing of lessonas, unremitting innovation and borrowing of advanced technology from both at home and abroad, our company is now becoming a professional manufacture of oil tester, electric tester, fire testing equipment, and oil purifier.

Wuhan Goldhome Hipot Electrical Co., Ltd was established in 2008, with the double efforts to struggle under more than ten years' diligent hard-working and adhere to spirit of keeping truth-seeking and pragmatic, exploring one professional road with competitive development in the electric and power testing field.

Hebei Dual Canopy Mechanic Electrical Engineering Co., Ltd. - Enhanced Company Profile

Sansion Power Electric Co., Ltd was established in 2005, a technocrat who have rich experience of more than 10 years in R&D, manufacturing and marketing of power electrical testing products, which are widely used in the fields of power electric, railroad, energy conservation and environment protection, water conservancy, petrochemical industry, aerospace and etc.

GOLDSOL(WUHAN) HIPOT TEST EQUIPMENT FACTORY

Dongguan ZhongLi Instrument Technology Co., Ltd. Was established in 2014. Nestled in Dongguan, Guangdong province, a region renowned for its vibrant manufacturing and technological innovation, our company has thrived in this dynamic environment.

SHENZHEN BONAD INSTRUMENT Co., Ltd. (HONGKONG BONAD TECHNOLOGY LIMITED) is a high-tech company in HongKong, producing all kinds of precise instrument. We specialize in the high quality of Electronic Safety Tester, Gauges for lamp caps and lampholder, Laboratory Equipment, Test Chamber, Test Equipment, Lux Meter, Weight Sensor and Electric Ruler and so on. We have gathered lots of well educated and experienced researchers and administrators on this electric products. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.

Sinrad Technology Co., Ltd is an national high tech company specializing in R&D, production and sales automation machine. We mainly engaged in R&D and sales on intelligent production lines and non-standard automation equipments which we can provide professional solution for your production line. We mostly focus on intelligent soldering robot, Wire harness processing and cable harness machine and laser machine.