(1)能检测火灾事故，并报警。 (2)能检测烟雾、有毒气体泄露事故，并报警。 (3)能实时显示室内温度值，并通过键盘设置温度报警上下限值。 -(1) can detect fire and police. (2) can detect smoke, toxic gas leak accident, and the police. (3) the indoor temperature can be displayed in real time, and through the keyb