HR-tun Technology is a high-tech company integrating R&D, production, and sales, mainly engaged in the production, R&D and sales of security products, fire protection products, anti-theft alarm equipment, and fire extinguishing equipment. Our main products include photoelectric smoke detectors, fire controllers, combustible gas detectors, carbon monoxide alarms, and composite alarms. The company is also committed to the R&D, production, and sales of smart products, mainly including wireless communication, NB-IoT, Zigbee, CAT1, LORA, and other Internet of Things products. Currently, the company hasenzhen Hualdun Technology Co., Ltd. And Hualdun Technology (Dongguan) Co., Ltd. Shenzhen mainly focuses on R&D and sales while Dongguan is the manufacturing base. We are always striving to become the leader in China's smart fire protection industry. Our business philosophy is to share benefits divide labor, and collaborate for mutual development. Creating a happy life for employees and providing value to society has always been our goal and mission.