HD united promises 5 year warranty for customer satisfaction We guarantee every product is made by highest quality...

Since the debut of our products, we have constantly been receiving positive reviews from costumers...

HD united BSMS LCDAS uses 2 24GHz microwave radar to detect approaching vehicles from rear side The system calculates collected signals then send driver warnings...

HD united grand opening in Beijing Zhongguancun industrial park, concentrates on developing and producing intelligent vehicle safety system...