As a property, how to send a notice to remind the owner not to forget to bring the key? Need a short announcement, posted at the door of the community.

You're not from here? What exactly are you going to write?

Skills of using electronic cards

Dear owners and property users,

The electronic doors in the community have been used for some time, but the owners often forget to bring electronic cards. Here, I want to remind you:

Individual owners often kick electronic doors because they don't have cards. Public facilities and equipment are shared by all owners, and as a member of the community, they should be cherished and maintained together. In addition, for the safety of you and all the owners of the community, please remember to bring your electronic card when you go out.

The harmony and security of the community need everyone's attention!