Heyi has been committed to the security industry for many years. There always come with new products .Such as the W7 wifi/gprs/gsm alarm system, 360 degree Ip Camera and HY-518B gprs/gsm/pstn alarm system etc.
On September Turkey and Shenzhen show. On October HongKong Asian World Expo,. HEYI invite you to discuss new trends in security. Be there or be square!!!