1 answers
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First of all, see if your anti-theft door door Ling sound is a variety of bell sounds, not a variety of can not be replaced.
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1 answers2024-05-23
It means that the battery is charged, but the buzzer is broken, and it would be good to replace the doorbell again.
What is the reason why the sound of the unit anti-theft doorbell doorbell call system is very small,
1 answers2024-05-23
It may be that the doorbell sound direction is reversed when it is installed, you just need to remove it and change it one by one.
2 answers2024-05-23
Changing the door handle of the security door is actually a very simple thing, as long as you have the tools, it can be done in 10 minutes. >>>More
4 answers2024-05-23
Different brands, different prices. Generally around 100.
1 answers2024-05-23
Of course, it is to choose a big brand, and it is guaranteed. Or go to a regular manufacturer to buy a more famous brand. It also works well this way.