| Display | 7Ā inchĀ digitalĀ LCDĀ (800*480) |
| Connection | 4Ā wireĀ (power,Ā video,Ā audio,Ā grounding) |
| PowerĀ Supply | 13.5VĀ DC |
| Ā PowerĀ ConsumptionĀ (WorkingĀ Mode) | 7WĀ (Ā max.),Ā 1WĀ (standĀ by) |
| AudioĀ Distortion | ???3% |
| Video | 1Vp-pĀ 75āĀ (input) |
| WorkingĀ Temperature | 0Ā āĀ toĀ +50ā |
| StorageĀ Temperature | -20āĀ toĀ +70ā |
| DistanceĀ (IndoorĀ toĀ Outdoor) | 60mĀ (RVV4x0.5)Ā 100mĀ (RVV3*0.5+SYV75-3) |
ZKTeco VDPI-B1 Video Doorphone Price in London, UK
| 7-inch indoor video door phone system /Classic design in hands-free style /Real-time monitoring to door station |
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