KERUI M521 Waterproof Wireless Smart DoorBell Home welcome Door Bell With Battery 4 Volume Levels 57 chime Ring Doorbell
Technical Details
| Alarm: | No |
| Brand Name: | KERUI |
| Communication Interface: | Wireless |
| Display: | None |
| Feature: | None |
| Function: | Doorbell, alarm, welcome multi-purpose |
| Item type: | Wireless Doorbell |
| Itercom: | No |
| Power: | Electric Supply |
| Specifications: | UK,AS,EU,US |
| Suit For: | Support 1527/2262 code chip full range of accessories |
| Transmitters: | Can learn up to 30 transmitters, no loss of power |
| Volume: | 4 levels adjustable |
| Wireless Distance: | 150 meters (open space) |
| Wireless Frequency: | 433MHz |
| Working Current: | <100mA |
| Working voltage: | AC 100-220V |
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