Preparation: screw driver x 2, AA battery x 3
1.Drill 6mm holes on the wall, and put the wall plug;
2.Fix the rear cover by screws;
3.Install battery and put the tag panel into the rear cover;
4.Fix the tag panel by screw.
Preparation: silicon sealant x 1, screw driver x 1, AA battery x 3
1.Glue the rear cover on the wall by silicon sealant
2. Install battery and put the tag panel into the rear cover;
3. Fix the tag panel by screws.