VTH0003A is a 2-wire analog audio indoor monitor designed for essential video intercom systems, featuring 2-wire analog communication for simple and reliable installations. Equipped with half-duplex two-way audio with a built-in speaker , it enables clear communication with the external station. It integrates one-touch quick functions for answering, door opening, DND mode and mute, improving daily usability. Thanks to LED status indicators and Braille support , it offers instant accessibility and control. The compact design with low power consumption ≤5W makes it ideal for Dahua residential environments.
VTH0003A | 2-WIRE INDOOR ANALOG MONITOR

The Dahua VTH0003A is a 2-wire analog audio indoor monitor designed for simple and efficient video intercom systems, featuring 2-wire analog communication for quick and reliable installations. Equipped with half-duplex two-way audio with a built-in speaker , it enables clear communications with the external station. It integrates one-touch quick functions for call answering, door opening, DND mode and mute, improving the user experience. Thanks to LED status indicators and Braille support , it offers immediate accessibility and control. The compact design with low power consumption ≤5W makes it ideal for residential environments.
Main specifications:
- 2-wire analog communication for simple and reliable installation
- Half-duplex two-way audio with built-in speaker for clear communications
- Quick one-touch functions for call management, door opening and DND mode
- LED status indicators for instant device control
- Braille support for greater accessibility
- 2-channel alarm input for doorbell connection
- Low consumption ≤5W ideal for continuous use
Further details
Equipped with 2-channel alarm inputs for connecting doorbells and external devices, as well as a dedicated interface for door management, ensuring simple integration with basic systems.
Technical data sheet
| VTH0003A | |
| System | |
| Main Processor | Embedded Processor |
| Operating System | RTOS |
| Button Type | Mechanical |
| Basic | |
| Audio Input | 1 channel |
| Audio Output | Built-in speaker |
| Audio Mode | Two-way audio (half-duplex) |
| Function | |
| Communication Mode | Full digital; Digital 2-wire |
| DND Mode | Yes |
| Number of Extensions | 2 |
| Port | |
| Alarm Input | 2 channels |
| Door Bell | Yes (use the alarm input port) |
| Performance | |
| Casing Material | ABS |
| General | |
| Appearance Color | White |
| Power Supply | The power is provided by the distributor. |
| Power Adapter | Purchased separately |
| Installation | Surface Mount |
| Certifications | THERE IS |
| Product Dimensions | 91.5 mm × 160.0 mm × 25.5 mm (3.60" × 6.30" × 1.00") |
| Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| Operating Humidity | 10%–95% (RH) |
| Operating Altitude | 0 m–3000 m (0 ft–9842.52 ft) |
| Power Consumption | ≤1W(standby),≤5W(working) |
| Gross Weight | 0.318 kg (0.7 lb) |
| Storage Temperature | 0 °C to +40 °C (+32 °F to +104 °F) |
| Storage Humidity | 30%–75% |
| Operating Environment | Indoor |


