The infrared anti-theft alarm, consisting of an infrared detection circuit and an alarm circuit, is a practical self-defense deterrence warning tool.
红外线现场防盗报警器由红外探测电路及报警电路组成，是一种实用的自卫队性威慑报警工具。
The utility model relates to an alarm zipper which is composed of a zipper and an alarm circuit. The alarm zipper belongs to the field of the human necessities.
本实用新型是一种由拉链和报警电路组成的报警拉链，属人类生活需要领域。
A real-time clock circuit(X1228)is applied to be an hourmeter, data memorizer and alarm in speedometer.
实时时钟电路（X1228）被用作里程表，数据存储器和车速表中的警报。
When an one-point or multi-point earth fault occurs, the monitor can quickly detect the serial number and polarity of the branch circuit earthed, and meantime give alarm to the operator on site.
在直流系统发生一点或多点接地时，该装置能迅速检查发生接地的直流支路编号及接地支路的极性，同时报警提示现场运行人员。
The invention is realized as the following: an intelligent alarm is arranged on the body of the bottle and can judge the integrated circuit of the relative position of the door and the bottle;
本发明是这样实现的， 在瓶的瓶体上安装一个智能报警器是可以判断门与瓶相对位置的集成电路；
The utility model relates to an earthquake alarm which is formed by the connection of a power circuit, a vibration sensor, an alarm delay control circuit and a sound alarm circuit.
本实用新型涉及一种地震报警器，由电源电路、震动传感器、报警延时控制电路和声响报警电路连接构成。
The accident noticing circuit is composed of an indication lamp and a sound circuit, and can automatically give the alarm when the circuit has accidents.
故障通知电路由表示灯和音响电路构成，一旦电路故障就可自动告警。
The accident noticing circuit is composed of an indication lamp and a sound circuit, and can automatically give the alarm when the circuit has accidents.
故障通知电路由表示灯和音响电路构成，一旦电路故障就可自动告警。
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