Wholesale Electrical Testing Instruments Manufacturer

MEWOI Electronics Co.,ltd is a leading Testing instruments manufacturer in China. We provide OEM/ODM Service to global customers. Our main products include: Clamp Earth TesterClamp on ground resistance tester,Earth ground resistance tester,earth resistance clamp meterclamp earth resistance tester

Earth Resistance TesterInsulation Resistance testerEarth Resistance On-line TesterPhase DetectorHigh Accuracy Clamp LeakerPower quality analyzer,  Three Phase Power TesterHigh Voltage Clamp MeterDouble Clamp /Three Phase Digital Phase MeterWireless High Voltage Current Transformation Ratio TesterCurrent meter,  Clamp Current SensorAC/DC Clamp MeterDC Hipot GeneratorSound Level MeterNoise dosimeterWBGT Heat Stress MonitorDC resistance Bridge,Insulating Oil Dielectric Strength BDV Tester,Battery internal resistance voltage testerultrosonic cable height testerwireless high voltage hook type current clamp meterwrist type high voltage approach electric alarmleakage current clamp meter,meggerDC Low Resistance Tester, Circuit/Contact resistance tester/MicroohmmeterVLF Hipot TesterAC Leakage current sensorDC Leakage current sensorclamp leakage current sensorCT PT Transformer analyzerInsulator’s Salt Density TesterSF6 Quantitative Leak DetectorSF6 Dewpoint Detector , etc.

We are also committed to providing all-round instrument supply chain services to customers all over the world。

These instruments are widely used in Electricity, telecommunications, military, petroleum, environmental orgnizations,chemical, meteorological, rail industrial and mining areas.

We adopted the highest standard of inspection and testing instruments in the world to assure  our products to be safest, precise and durable.

All devices are designed and manufactured by our company and have its own name – MEWOI. we are guided first and foremost the wishes of our customers regarding the accuracy, functionality, ergonomics and performance of new devices. That’s why use of devices MEWOI very easy and convenient. Taking in o account the wishes of our customers, we certainly take in o account the fact that the cost of the device should be minimal, with the maximum possible set of service and operational advantage.

MEWOI is committed to provide you with quality products and professional technical service. We welcome any questions you have about our products or any comments you wish to make. To do so, please send us an email or fill in the Inquiry form and a MEWOI representative will contact you.



From top universities in China,which has over 10years R&D Experience


We provide ONE-STOP Service integrating design,customization,,measurement,production,delivery and after-sales service


We stock up in large quantities to reduce raw material procurement costs,Careful packaging reduces logistics costs,Strict product testing reduces failure rates and usage costs。Fast delivery reduces capital costs。


Our dedicated engineers and quality inspection team work hand-in-hand to guarantee uncompromised safety and adherence to industry standards. Our commitment to quality is reflected in the certifications we have earned, providing you with peace of mind when choosing our products.

Behind every successful product is our talented Research and Development team, tirelessly working on innovative product designs and developments. This ensures that our offerings not only meet but exceed the evolving demands of the electrical testing instruments industry.

1,Provide Professional LOGO Design on the instruments

2,Customiza Parameters according to customers requirements.

3,Provide Professional LOGO Design on the the Packing materials

4, Email/WeChat or Whatsapp Timely communication

5, Fast Delivery

6, After-sales service


MEWOI is one of the leading Electrical testing instruments manufacturers in China, specializing in Electrical testing products R&D and manufacturing. Which has over 25years history in this area. Our headquarters is located in the heart of PengSheng Industrial Park in GuangZhou, the office is about 40 minutes away from BaiYun International Airport by driving.

MEWOI is a professional company engaged in the research, development, sale, and service of Electrical Testing instruments. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. As the most advanced Testing instruments suppliers, MEWOI are making great efforts to develop new products to meet different requirements. Our company has high-quality inspection equipment and a well-built system to strictly control the product quality. we have had a reliable reputation among our customers because of our professional services, quality products, and competitive prices. We would like to take customers' requests as the most important thing to do, to think about what the customers would care about. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements. If you have any new ideas or concepts for the products, please contact us. We are glad to work together with you and finally bring you the satisfied products.

1, Over 20 million orders from foreign countries.

2, Continuously developing creative products that meet and even exceed market demands

After Sales