Illustration of how people make simple personalized anti-theft alarms by themselves
If there is only one person at home and you are always worried about being unsafe at night, then you may be able to manually make a door-opening alarm device.
And the production process is not very complicated. People who are interested can take a look at how it is made.
First, paste the two batteries on both sides of the clip in opposite directions.
Then weld the points on both stages of the battery.
Drill holes on both sides of the plastic clip and tighten the screws.
Weld a special alarm buzzer device directly between the battery and the screw.
Then use wires to connect other parts.
Put all the alarm components Paste it on the door, and then tie a cardboard box to the wire.
Use it as a tripwire and paste it on the other side of the door.< /p>
Such a very simple anti-theft alarm component is completed.
As long as the door is opened, the buzzer will sound.
So as to achieve the effect of alarm warning.
You only need to follow the illustrated steps and you can quickly make this simple and effective alarm.< /p>
