The second includes installation of an intercom and buzzer system in every police cell , linked to a console beside the duty officer ' s desk.
第二项计划包括在警署每个羁留室安装一个内部通话器及警钟系统，连接至当值人员办公桌旁的一个控制台。
The system achieves multi-channel temperature signal acquisition and control. Temperature limit is set by keyboard. The buzzer and relay are controlled by MCU.
本系统可以实现多路温度信号采集与显示，可以使用按键来设置温度限定值，通过进行温度数据的运算处理，发出控制信号达到控制蜂鸣器和继电器的目的。
Accompanied by the keyboard module and alarm module consisting of the diode and buzzer, complete temperature control system hardware is formed.
配以键盘模块及由二极管、蜂鸣器组成的报警模块，组合成较为完整的温度控制系统硬件。
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