PROUDLY DESIGNED
ENGINEERED AND
MANUFACTURED IN SHENZHEN, CHINA
About us
Since 1999, Ausinter Technologies has been designing and manufacturing high-performance speakers and precision circuit board assemblies. From a small workshop to a 3,500-square-meter production facility equipped with advanced automation in Shenzhen, Guangdong Province, Ausinter has consistently delivered reliable speaker solutions for municipal, industrial, and first responder wireless communication equipment.
As an industry leader and family-owned business with over two decades of history, Ausinter recognized it could do more for the frontline emergency personnel who work around the clock to protect lives and property. In 2021, Ausinter established the SIGSA brand, dedicated to the development and manufacturing of emergency warning and lighting equipments — redefining operational safety for first responders. SIGSA's founder, Mr. Su, is a passionate and innovative software and electronics engineer with years of industrial experiences in Europe and the United States, as well as hands-on exchange experience with frontline police departments in Florida, mainland China, and Hong Kong. He understands that a highly reliable, versatile emergency warning system solution is critical for those on the front line.
Building on its deep expertise in power electronics and embedded systems, SIGSA has expanded into the design and manufacture of high-performance Electronic Speed Controllers and power electronics for commercial aerospace, defense, and automotive applications. From custom power stage design and advanced thermal management to application-specific firmware and control algorithms, SIGSA delivers bespoke solutions engineered for mission-critical environments where reliability is non-negotiable.
SIGSA designs and manufactures highly reliable automotive emergency warning and lighting equipment, and mission-critical power electronics — overcoming long-standing technical barriers in the industry. The R&D team comprises engineers with extensive domestic and international experience in signal lighting, warning system, motor control and power electronics development across both industry and academia — including a postdoctoral chief engineer, formerly a researcher at the Changchun Institute of Optics, Fine Mechanics and Physics under the Chinese Academy of Sciences (CIOMP, CAS), who leads SIGSA's signal lighting lens development. Together with a dedicated engineering team and skilled manufacturing team, they are building exceptional fine products that earn the trust of frontline emergency personnel and aerospace programs — keeping people safe when every second counts.
We Support Local Manufacturing
Injection Molding
With injection molding machines ranging from 300 to 1,500 tons, our annual production capacity reaches approximately 30 million parts across a wide variety of simple to complex geometries and structures
​Dongguan, GD
Zhanjiang, GD
Pressure Die Casting
Compared to gravity casting, aluminum alloy die casting achieves superior quality and high-strength product performance.
Shenzhen, GD
Post Process
Automotive-grade UV protective coatings and powder coat finishes ensure our plastic lens products and metal housing components maintain exceptional aging resistance and scratch durability under prolonged sun exposure.
Huizhou, GD
​Dongguan, GD
Electronics Manufacturing
As Aoxingda's founding expertise, over 20 years of electronics manufacturing experience ensures every circuit board produced meets the most demanding performance requirements. All circuit boards are surface-mount assembled and tested at our own facility in Shenzhen — widely known as the Silicon Valley of China. Final product assembly is also completed here.
Shenzhen, GD
Partners
SIGSA's engineers regard the finest materials as the cornerstone of every product. They are committed to sourcing from the origin, rigorously validating through repeated testing, and continuously evolving to meet the increasingly diverse needs of our customers.
​All other company, product, and service names, logos, brands, and any registered or unregistered trademarks mentioned are used for identification purposes only and remain the exclusive property of their respective owners. The use of any brand, name, logo, or any other information, image, or material relating to a third party does not imply endorsement. We claim no proprietary interest in such third-party information, images, materials, logos, or names.
