Safety device

The utility model discloses a safety device, in particular to a safety device with easy movement and setting. The utility model safety device comprises a microcontroller, a detection circuit, a complex frequency signal decoder and a mobile phone set, wherein the microcontroller can receive the signal of the detection circuit and can also provide the setting of the telephone number of the outward dialing and the alarming voice. By the design, when the trespass is detected by the detection circuit, the mobile phone set remote-controlled by the microcontroller dials outward and transmits data to the phone of another place for warning, and by receiving the external control signal, under the condition of not requiring to be arranged, the safety device can be arranged in the demand place by the user, which achieves the goal of easy setting and movement, further improves the convenience of use, moreover can effectively protect the body and property safety of user.