| Customization: | Available |
|---|---|
| After-sales Service: | Technical Support |
| Warranty: | 3 Years |
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| Material | zinc alloy |
| Back light color | Blue, green, red, white (You can choose other color if need. Need extra cost) |
| Function | logo, room NO., no disturb, clean, check-in, doorbell |
| Voltage | DC5V/ DC12V/ AC110V/ AC220V |
| Power consumption | backlight display 0.4W |
| Diameter | 230*130mm |
| Installation | 86 box |
| Connection | Wired connection. |


