1. Appearance: (outer ring for gold or silver, keys can be made of metal or glass)

2. Appearance size: diameter 15CM, thickness 1.5CM.

3. Positive for the black with gold stripes (can be customized according to customer requirements).

4. So, please do not disturb and please clean up font and back light (red, blue or green) can be customized according to customer requirements.

5. Backlight doorbell button (red, blue or green) can be customized according to customer requirements.

6. Installation: 86 box embedded mode.

7. Connection: the gate circuit diagram is significant resources

8. The server for interlocking to do not disturb and Bell: according to the do not disturb, the bell rang as not.

9. If the energy-saving switch control doorbell server line, the only electric door number will be bright, the doorbell rang in to the guests, do not disturb please and clean up to light up in the press.

10. Double color door display: energy-saving switch card and LOGO after electric, door display room from red to blue.