About Us

About Wrindu Company

Based on a sustainable long-term vision, we consistently provide our customers with best-in-class solutions and services.
RuiDu Mechanical and Electrical (Shanghai) Co., Ltd. is a leading global manufacturer and system solutions provider specializing in power testing equipment. Established in 2014, we are dedicated to the independent design, development, and production of high-voltage power test equipment. Our product range includes testing equipment for substation transformers, high voltage switches, mutual inductors, lightning arresters, storage batteries, cable faults, relay protection, insulation withstand voltage, insulation grounding, and transformer oiling equipment. Committed to quality, all our products hold international ISO 9000 series, IEC, and CE certifications, ensuring top-notch standards and reliability.
We emphasize top-tier quality with advanced technology, meticulous raw material sourcing, and strict adherence to global standards (ISO9001, IEC, CE). Our production, guided by experts from top domestic institutions, follows 5S management to ensure consistent excellence.

Our Mission

To deliver precise, reliable electrical test meters and exceptional service, empowering global clients to
ensure electrical system safety and efficiency with confidence.

Our Vision

To be the world’s trusted leader in electrical test equipment, driving innovation to set new standards for accuracy and usability in power measurement.

"Choose Genuine Electrical Test Meters for Reliable Results"

Invest in authentic electrical test meters from us. Our products guarantee accurate readings, durable performance, and professional support—saving you costs and trouble in the long run.