China Security & Fire Co.,Ltd. is the leading security enterprise, which is specialized in security products manufacturing and solution providing for 20 years, and listed on the Shanghai Stock Exchange with capital of 1.2billion RMB in 1990（stock code:600654）. Currently we have over 5000 employees, and own many outstanding subsidiaries in the security industry.Shenzhen DIT Security &. Surveillance Technology Co.,Ltd. (DIT) and China Security&Fire IOT Sensing Co., LTD(Longhorn) are two of our subsidiaries. DIT was founded in 2005, and rapidly growing in recent years. It supplies latest products including P2P IP camera, digital wireless kit, HD DVR kit and other remote surveillance CCTV products for home or business use.Established in 1995, China Security & Fire (former Longhorn) is a state-level high-tech enterprise of professional security equipment and solution provider integrating R&D, Sales and Manufacturing in Shenzhen, China.