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That's not the model is the manufacturer's phone number, you just call it, the number is in Jinhua, Zhejiang, it should be produced in Yongkang City.
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It is sold in the local security market.
I don't know if the maintenance period of the anti-theft door Ling has passed, if it has not passed, you can arrange someone to repair, and then you can't go online to find some door-to-door service repair stations, but you must be careful to ensure its true reliability. >>>More
The same feeling, and it is very troublesome to change the battery, the battery leakage doorbell is broken, the door-to-door repair, the door-to-door fee is 100, and then I bought a wireless doorbell.
There are many ways to change the doorbell and the battery, I don't know which one you are. >>>More
Hello landlord! As you said, it should be you, it should be the unit intercom electronic door, the doorbell does not ring, it should be a problem with the line, it is not a big problem, and it can be easily solved by finding a lock company. Generally, there are many small advertisements on the stairs and walls of the accommodation building. >>>More