SHENZHEN PROFESSIONAL SECURITY TECHNOLOGY Co., Ltd is a professional large-scale manufacturer of all types of Tuya Smart Home Automation System integrating development and production together. Our main products include Tuya Smart Home Alarm,Tuya Smart CCTV Camera,Tuya Smart Door Phone & Lock,Tuya Smart Electrical,Tuya Smart Lighting and Home Security Systems etc. Our company PST was established in 2007. Our company employs more than 100 workers. Through the efforts of our entire staff, we have become one of the leading manufactures of security products in China. PST people have continuously tried our best to improve product quality, research, innovation, after-sales service and delivery time etc; and our products have achieved FCC, CE, UL and RoHS etc certificates. Until Aug 2016, PST products have already exported to in total 163 countries. Our company regards "reasonable prices, efficient production time and good after-sales service" as our tenet. We hope to cooperate with more customers for mutual development and benefits. PST will be your one stop supplier for security products in China. Warm welcome you contact us. We are here just for you!