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Anonymous users2024-01-24Teach you to make a homemade anti-theft doorbell that will sound an alarm whenever someone opens the door!
1. Try to replace it with a new battery first.
2. See if the wire is short-circuited and can be reconnected. >>>More
Yes, this non-conflict judgment grade A standard refers to the thickness of the material and the number of lock points.
Nowadays, many things can be used in general, but there are many models. The doorbell you want, the cat's eye, and the door lock are not necessarily original, and the shape is almost the same.
The installation time should be selected before the completion of the bricklayer, because the previous installation bricklayer and mason can be well repaired and smoothed. The installed anti-theft door will have a protective film, and you can also add another layer of protection by yourself, if it is not a human collision, it will not cause damage. >>>More