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 h…