If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.
如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。
2
It can send a signal to change the states of alarm and implementation module, current temperature is displayed by LCD. The system achieves multi-channel temperature signal acquisition and control.