| 摘要 |
The present invention is a wireless alarm system having a transmitter which operates in conjunction with existing intruder detection devices to provide an electromagnetic signal in response to detection of an intruder. The transmitter is attached to, and is pulsed by the detection device. In response to the pulse, a signal is emitted by the transmitter, and is sent to a receiver unit which is electrically connected to a power source remote from the transmitter. The receiver is provided with an electrical switching mechanism and an alarm selection device. When a signal from the transmitter is received by the receiver, the power from the power source is switched by the receiver so as to actuate one or more of selected alarms or electrical components which may be an integral part of or be attached directly to the receiver, or may be located remotely therefrom.
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