The alarm model gives the alarmsignal in abnormal condition, it can auto stop the system when serious fault happened, and remind the workers to repair it.
报警模块在系统出现异常情况下可以给出报警信号，且在出现严重故障时系统自动停止工作。
2
The electric point mercury thermometer call transmit the electric signal when get the setting temperature, and get the auto control or alarm funnction.