SHENZHEN Meidasi Technology Development Co.,Ltd.. which is a professional manufacturer& supplier for security products. Compared to other suppliers, we have the following unique advantages, 1. The best performance to price ratio in China. 2. Our products are the best in technology & quality in China and can be used in various kinds of field. All of our products are designed and developed entirely in-house with leading technologies, backed by more than 30 seasoned R&D engineers. 3. Support OEM & ODM services and huge order. 4. Good world sales network. We have sold products to more than sixty countries. 5. Build long-term business cooperation relationship with good faith with every customer. We professionally help customers research and develop new products to grow their market s