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Ding-dong Musical Melody Doorbell 12V Wired Door Bell For Access Control
- Wired doorbell, buzz tone, soft voice loud and clear
- Easy to install, 12V DC power supply, no battery installed.
- Dimensions: Length 87 × 62 × 23MM
- Color: White
- Wiring methods:
- Wiring (need 12V power supply use):
- 1, red with black 12V power supply positive and negative access terminal;
- 2, yellow with green signal line connected access control (BELL end);
- Sound is: 80 db;
- Note: This wired doorbell without the button can only be used with the door access control