Multifunctional alarm device

The utility model relates to a multifunctional alarm device, and aims to solve the problems that the conventional alarm device does not have multiple functions and has an incomplete function. The multifunctional alarm device comprises an emitter and a receiver, wherein the emitter specifically comprises a peripheral circuit module I, a singlechip module I, a wireless module I and an alarm module I; the receiver specifically comprises a peripheral circuit module II, a singlechip module II, a wireless module II and an alarm module II; the peripheral circuit module I is the same as the peripheral circuit module II; the wireless module I is the same as the wireless module II; and the alarm module I is the same as the alarm module II. The multifunctional alarm device successfully integrates three functions of preventing personal objects from being stolen, preventing children from being lost and searching objects; and compared with the conventional alarm device which only has a single stealing prevention function, the multifunctional alarm device has relatively complete functionality and functional diversity. Furthermore, according to the appearances, the emitter and the receiver can be made into small objects such as toys and decorations and used as portable pendants, ornaments carried by the children and the like.