The requirements in different parts of the security monitoring industry are also different. Some are mandatory 1 month, and the bank level is relatively high, so the storage time is generally 3 months to half a year. Generally speaking, the financial industry lasts for 26 days, the residential area lasts for 7 days, and the entertainment place 15 days. Only by proposing a safe city, the time may be longer.

Information supplement:

The time of monitoring and saving will naturally vary with the installation location, which is mainly divided into the following situations:

1, installed in the community, can be stored for about 7 days.

2, installed in entertainment places, usually 15 days.

3, installed in financial institutions, can be stored for about 26 days.

4. The longest storage time in the bank, ranging from 3 months to 6 months.