Dongguan ZhengYang Electronic Mechanical Ltd. is one of the world's largest manufacturers of liquid level sensors and AdBlue sensors and gauges. Our products are widely used for the automotive, marine, airline and industrial equipments. We are one of the largest providers of quality level sensors and gauges in the world. The quality and market share are far exceed those of our competitors, with distributions in Asia, America, and Europe.

A Growing ZhengYang
Dongguan ZhengYang Electronic Mechanical Ltd.'s precursor was DAX International, established in Taiwan in 1984.

In March 2003, ZhengYang established the first production facility in DongGuan City GuangDong Province, China.

In 2006, ZhengYang started to build a modernized factory which is over 50,000 square meters and was opened in 2008. The new facility can accommodate up to 2,000 employees and allows us to increase production to more than 1,000,000 units per year.

A Strong Research and Development Team
We have an excellent Research and Development team that are over 10% of ZhengYang's personnel and are constantly working with companies like Mercedes-Benz, Volvo, Iveco, Scania, Renault, etc to develop the latest products. Our 30+ years of professional experience, in conjunction with our dedicated R&D team and our newest facility, allows us to be on the leading edge of designs for sensors, gauges and other related products.

Since 2004 we have started working with large automotive companies around the world to develop series of AdBlue sensors for the SCR system. It can reduce up to 50% of NOx that comes from the automobile, which meets the requirements of Euro4 and Euro5. So far we are the only supplier of high quality AdBlue sensors in the world. Our AdBlue sensors were used on all the public buses during the 2008 Olympics in Beijing. The development mass production of AdBlue sensors is vital in reducing environmental pollution.

In 2007, ZhengYang invested a large amount of money to build a high quality comprehensive laboratory in purpose of increasing the quality of the products. The experiment center meets the international standard of tests including design construction test, electricity test, mechanical performance test, temperature test, salt spray test, sine/random vibration test, elements of metal material test, metallurgical analyzer, and intergranular corrosion analyzer. A wall is set for quality!

High Standards for Quality
We are among the first in our industry to have obtained the ISO/TS16949, ISO14000, CE, PED, AD2000, etc. certifications. Our quality management system is on par with international standards. Aside from being certified by a third party, clients from the automotive and marine industries are welcome to onsite visits.

Most up-to-date Technology and Facility
Advanced machines for producing and testing are imported such as pipe making, stamping, injection, die-casting, CNC machining, welding, polishing, and cleaning, etc.

Diverse Product Series
Our products include liquid level sensor, diesel fuel sensors, various engine sensors, gauge series, fuel and AdBlue tank series, stainless steel accessories series, etc. and many of them have become standard components for many large automotive and marine companies. We also provide numerous other accessories, such as tank peripherals, marine hardwares, etc.

Effective Management of Human Resources
We believe that having great employees is the only way to build a great company to provide excellent products and services to our customers.

High quality products, efficient delivery, reasonable price, professional services, and excellent team, we look forward to working with you.