| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple device capable of generating an alarm for an illegal invader for picking, etc., by sound and light to notify the surroundings of an illegal invasion. SOLUTION: This alarm device for crime prevention is constituted such that an alarm means is provided with a power supply switch 5, an alarm selection switch 6, an alarm buzzer 2, an alarm lamp 3, a key switch 1, and sensor switches 4a, 4b for detecting the opening of a door, an alarm is transmitted when the door is opened without turning the power supply switch OFF, and the alarm is continuously transmitted so far as the key switch is not turned OFF.
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