Shenzhen Danwish Technology Co. Ltd is located in the beautiful Shenzhen City, is a supplier of tuya alarm security system gas sensor, PIR sensor smoke sensor, siren smart plug, tuya camera. br Rohs FCC certificates. Our tenet is profession, integrity and win-win have won us a lot of customers from Europe and America, Southeast Asia and etc . Our products are also widely used in different fields such as smart home , hotel school, commercial center station, factory restaurant ,store and so on. With the advancedbr