Audible and visual alarm signals will be output if resistance or voltage is beyond the range;
测试时，电阻或电压超出设定范围时，分别有声光报警信号。
When the lamp failed to light, it may be audible and visual alarm signals and display street address of fault ones.
路灯故障时，可发出声光报警信号，并显示故障路灯地址编号。
Developed for field use in military environments, the unit provides a visual or audible alarm when a threat is detected and classifies the agent by threat category.
开发供在军事环境中实地使用，当威胁被检测到且按威胁种类分类后该设备提供了一个视觉或听觉报警。
Audible and visual indicator alarm.
指标和声光报警。
Audible and visual indicator alarm.
指标和声光报警。
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