Shenzhen Yitongshun electronics co.,LDT is a professional manufacturer of research and development production and marketing of security products, we have engaged in this filed for ten years and have advanced production testing equipment, our company implement strict quality management system and perfect after-sale service system. The main products of our company are gas detector, smoke detector; infrared detector and panel etc.we also offer the OEM/ODM service to our customers. Hoping to establish long-term friendly business relationship with you.