| 摘要 |
The invention relates to a lock device with alarm (1) comprising a latch (1.6) preventing burglars from entering into houses or offices through doors or windows, and at the same time acting as a child safety lock; an RF transmitter (1.2) sending signal when the door or the window is forced; an RF receiver (1.1) activating the system after receiving the signal sent by the RF transmitter; and an alarm (1.5) ringing when the system is activated. |
