About Hongston

Shanghai Hongshi Electric Co., Ltd. is a professional manufacturer specializing in industrial sensors and solid-state relays, integrating R&D, production and sales. Founded in 2016, we are driven by technological innovation. Keeping pace with the forefront of industrial technology, we maintain internationally advanced standards in product R&D, delivering reliable, standardized high-quality products to high-end customers worldwide. Our products are widely used in industrial automation control, covering machinery manufacturing, textiles, papermaking, tobacco, pharmaceuticals, food, chemicals, mining, metallurgy, aviation, power, security, automotive, transportation, marine engineering, construction and subway industries. They support functions including limit positioning detection, automatic counting, speed measurement, automatic protection and signal transmission. With professional production, sales and technical teams, we provide first-class service and customized solutions to customers with special application needs. Upholding integrity as our core principle, Hongshi wins global trust with stable and reliable product quality.

Company Values


Quality First

We adhere to strict quality control standards for every sensor and relay, ensuring reliable performance in harsh industrial environments.

Innovation-Driven

Continuous R&D investment keeps our products aligned with the latest industrial automation trends and technical requirements.

Customer Focus

We provide tailored solutions and responsive support, helping global customers solve automation challenges efficiently.

Integrity & Reliability

Built on trust, we maintain transparent communication and consistent product quality for long-term partnerships worldwide.

Inquiry & Customization

Reach out with your requirements. We provide professional consultation and custom solutions for your sensor or relay needs.

Production & Quality Control

From manufacturing to testing, we strictly follow quality standards to ensure every product meets industrial-grade reliability.

Delivery & After-Sales Support

We arrange fast delivery and offer ongoing technical support to help you keep your automation systems running smoothly.

Why Choose Hongston

Since 2016, we have specialized in designing and manufacturing high-performance industrial sensors and relays. Our commitment to precision, quality control, and customer support has made us a trusted partner for automation projects worldwide.

1.Reliable Quality

Every product undergoes strict testing to ensure stable performance in demanding industrial environments.

3.Competitive Pricing

Factory-direct pricing without compromising quality, helping you stay within budget.

5.Technical Support

Our team provides responsive pre-sales consultation and after-sales technical assistance.

2.Custom Solutions

We offer tailored sensor and relay solutions to meet your unique automation requirements.

4.Fast Lead Times

Efficient production processes ensure quick turnaround and timely delivery.

6.Global Compliance

All sensors meet IEC 60947-5-2:2012 standards, supporting reliable performance and smooth global integration.

RoHS Compliant
ISO9001 Compliant
UL Compliant
CE Certified
ATEX Compliant

CE certification officially approved. Other symbols mean our products are designed in full compliance with relevant industry standards. Complete formal certificates can be provided on request.

Certifications & Standards

Our products meet international safety standards, backed by our factory’s strict quality control and official certifications.

Ready to Discuss Your Automation Needs?

From custom sensor solutions to reliable after-sales support, we’re here to help you find the right products for your industrial automation projects.