UL Solutions Awards UL Certification to HGGAOLI for A2L Refrigerant Leak Gas Sensor
On December 26, 2025, Xu Jie, General Manager of Asia Business in Built Environment Group at UL Solutions, visited HGGaoli to present the company with the UL certification for its A2L refrigerant leak gas sensor based on the UL 60335-2-40 standard. Jack Nie, General Manager of HGGaoli, Ruibing Wang, Senior Deputy General Manager, and representatives from the company's technical team attended the ceremony.
The UL certification obtained is a product safety certification issued by Underwriters Laboratories, primarily evaluating whether a product's safety performance in electrical, mechanical, and fire protection aspects complies with international safety standards. This marks a significant milestone for HGGaoli in the field of refrigerant safety monitoring and signifies that the company has become the first manufacturer in China that is capable of printing the UL mark on mass-produced products, laying a solid foundation for entering the North American and global markets.
At around 9am, before the ceremony officially began, Xu Jie and the team visited HGGaoli’s exhibition hall and testing laboratories, gaining an in-depth understanding of HGGaoli's R&D capabilities, technological expertise, and industrial achievements in the sensor field.
During the certification ceremony, Jack Nie, General Manager of HGGaoli, delivered a welcome speech, expressing warm greetings to UL Solutions and thanking both teams for their professional collaboration throughout the certification process.
Subsequently, Xu Jie formally presented the UL 60335-2-40 certification to HGGaoli, stating: "The efficient cooperation between the two teams was key to the smooth progress of this certification. HGGaoli's technological expertise and innovative breakthroughs in refrigerant monitoring demonstrate that the company has reached international advanced levels in the field of high-reliability sensors. In the future, we look forward to deepening our collaboration with HGGaoli to jointly build a safer, cleaner, and more sustainable industrial ecosystem, injecting momentum into the high-quality development of the global refrigeration industry."
UL certification is one of the most authoritative safety certifications, particularly regarded as a crucial entry standard in the North American market. HGGaoli's successful acquisition of the UL 60335-2-40 certification not only reflects that its products have reached international advanced levels in safety, performance, and reliability but also showcases the following three core breakthroughs:
Mass Production with Certification, Higher Value
The certification covers multiple products across three series, all of which can directly bear the UL mark.More Accurate Monitoring, Stronger Adaptability
The certification covers a wide concentration threshold range of 7%–15% LFL, supports flexible configuration of nine alarm points, and enables full-scenario coverage from low-concentration warnings to high-concentration emergency responses. The product features full-temperature-zone self-calibration capability from -40°C to 100°C, ensuring stable and reliable performance even under complex working conditions.
Integrated Design, Easier Installation
The sensor adopts anti-condensation, low-power, and compact designs, supports integration of multiple models and alarm point functions, and provides customers with a one-stop refrigerant leak monitoring solution.
Since entering the refrigerant monitoring field, HGGaoli has successively obtained multiple international certifications such as IEC and ETL. Moving forward, HGGaoli will continue to maintain close collaboration with international institutions like UL Solutions, driving innovation and application in refrigeration safety monitoring technologies, to support the development of green refrigeration and low-carbon energy transition.
