Strain gauges
sensor chip
Miniature
Load cells
Commercial aluminium
Load cells
Commercial steel
Load cells
Pressure sensors
and instruments
Portable axle
weighing systems
Years of
Experience
Guangdong South China Sea Electronic Measuring Technology Co Ltd (formerly Dongguan Hualanhai Electronics Co., Ltd.), founded in 2003, is a high-tech enterprise specializing in R&D and production of precision measurement products, including strain gauges, load cells, highway weighing systems, portable axle weight meters, pressure sensors, and smart health devices.
The company has a professional management and R&D team, holds ISO, CE, RoHS, and OIML certifications, and owns multiple patents and software copyrights. Hualanhai has earned numerous honors, and its products are well recognized in domestic and international markets.
Listed on NEEQ in 2016 (stock code 837228), the company is in a rapid growth phase with a clear focus on group development. Hualanhai is committed to providing high-quality products and reliable service, welcoming customers to visit and cooperate.
Patents & Software
Smart Traffic Systems
Product Lines
Strain gauges
Invests >10% in sensor R&D; 155+ patents by 2025. MEMS pressure tech achieves ±0.03% accuracy (-20°C to +55°C), fully interchangeable with imports.
Top-three in China’s resistive strain gauge market (10%), dominant in South China; exports to 50+ countries (30% sales); listed on NEEQ (837228).
Strain gauges, load cells, pressure sensors, portable axle weighing systems; CE, RoHS, OIML certified; Guangdong Famous Brand & China Weighing Assoc. Recommended.
“Specialized & Innovative SME” with government support; partners with Huawei, Xiaomi; subsidiaries boost IoT solutions.
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Nov, 24, 2025
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Nov, 23, 2025
He has been engaged in the strain electrical measurement industry for nearly 50 years. Despite being nearly 70 years old, he remains true to his original aspiration. With his outstanding ability and innovative development concept, he continuously res...
Nov, 11, 2025
Guangdong South China Sea provides precision measurement products for smart traffic and industrial applications. Our strain gauges, load cells, and portable axle weighing systems offer high accuracy and reliability. Trusted by global clients. Request a quote today.
Dasheng Industrial Estate, Mayong, Dongguan, Guangdong, China 523136
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