Product SKU: DHI-VTH5123H-W
Product Overview
The Dahua VTH5123H-W-S2 is a 7-inch 2-wire Wi-Fi hybrid indoor video intercom monitor designed for apartments, villas and compatible residential or commercial entry systems. Its 1024 × 600 TFT capacitive touchscreen provides a clear interface for answering calls, viewing compatible door stations and cameras, managing intercom functions and accessing system settings. Two-way audio is supported with compatible VTO door stations and through the Dahua app, while 2.4 GHz Wi-Fi enables convenient network connectivity and remote app interaction. Six alarm inputs, one alarm output, RS-485, a 12 V auxiliary output and microSD storage up to 64 GB expand its functionality beyond basic video calling, while the compact white surface-mount design suits modern indoor installations.
Key Capabilities
7-Inch Capacitive Touchscreen
The 7-inch TFT display uses a capacitive touch interface with 1024 × 600 resolution for intercom calls, monitoring and system configuration.
2-Wire Hybrid Intercom Design
Designed for use with a compatible Dahua 2-wire controller, the monitor suits 2-wire hybrid video intercom installations where simplified cabling is required.
Wi-Fi & App Management
Built-in 2.4 GHz Wi-Fi supports Dahua app functions including receiving calls and alarm notifications away from the indoor monitor.
Two-Way Audio
The built-in speaker, audio input, echo suppression and digital noise reduction support clear intercom conversations with compatible VTO door stations and the app.
Alarm & RS-485 Integration
Six alarm inputs, one alarm output and one RS-485 interface allow the monitor to participate in broader intercom and alarm-system configurations.
Local Video & Snapshot Storage
A microSD card up to 64 GB can be used for compatible video recording, snapshots and leave-video functions.
Best For
- Apartments: Compact surface mounting and app connectivity suit individual residential intercom installations.
- Villas & Homes: Supports compatible door stations, camera viewing, extensions and alarm integration for broader residential entry systems.
- Retrofit 2-Wire Systems: Hybrid 2-wire architecture can simplify suitable upgrades where existing cabling is available.
- Small Offices: Touchscreen control, door communication and alarm inputs suit smaller commercial entry points.
- Remote Call Management: App support allows compatible calls and alarm notifications to be received away from the monitor.
Why Choose the VTH5123H-W-S2
The VTH5123H-W-S2 combines Dahua’s 2-wire hybrid intercom platform with Wi-Fi, touchscreen operation and useful alarm integration in a compact indoor monitor. Its 7-inch display provides an easy interface for visitors, cameras and system functions, while the six alarm inputs, RS-485 interface and 12 V auxiliary output make it more flexible than a basic indoor station. App management adds another layer of convenience for receiving calls and notifications remotely. Available through Security Wholesalers, the VTH5123H-W-S2 is particularly suitable for installations that need a clean surface-mounted monitor with 2-wire connectivity, Wi-Fi and expandable intercom functionality.
Buyer Decision Tips
Buyer Tip: The VTH5123H-W-S2 requires a compatible 2-wire controller for its intended 2-wire installation. Dahua lists the controller as sold separately, so confirm the complete system architecture and power requirements before ordering.
Buyer Tip: A microSD card is required for local video recording, snapshots and leave-video functions. The monitor supports cards up to 64 GB, but storage media is not listed as an included accessory.
Key Features & Technical Specifications
| Product Type |
2-wire Wi-Fi hybrid indoor video intercom monitor. |
| Model |
VTH5123H-W-S2. |
| Display |
7-inch TFT. |
| Screen Type |
Capacitive touchscreen. |
| Screen Resolution |
1024 × 600. |
| Main Processor |
Embedded processor. |
| Operating System |
Embedded operating system. |
| Network Protocols |
IPv4, UDP, DNS and TCP. |
| Wi-Fi |
Supported. |
| Wireless Standard |
IEEE 802.11b/g/n. |
| Wireless Band |
2.4 GHz. |
| App Management |
Supported for compatible calls and alarm notifications. |
| Audio Input |
1. |
| Audio Output |
Built-in speaker. |
| Audio Compression |
G.711a, G.711u and PCM. |
| Audio Mode with VTO |
Two-way half-duplex. |
| Audio Mode with App |
Two-way full-duplex. |
| Audio Enhancement |
Echo suppression and digital noise reduction. |
| Audio Bit Rate |
16 kHz, 16-bit. |
| Video Recording |
Supported with microSD card installed. |
| Snapshot Capture |
Supported with microSD card installed. |
| Leave Video |
Supported with microSD card. |
| Local Storage |
microSD card up to 64 GB. |
| Do Not Disturb |
DND mode and configurable DND period supported. |
| Extensions – Villa |
Up to 4. |
| Extensions – Apartment |
Up to 2. |
| Alarm Inputs |
6. |
| Alarm Outputs |
1. |
| RS-485 |
1. |
| Power Output |
1 × 12 V, 200 mA. |
| Doorbell Input |
Supported through alarm input. |
| Camera Connectivity |
Supports connection to compatible HDCVI cameras or IP cameras. |
| Power Supply |
Compatible 2-wire controller. |
| Power Adapter |
Optional. |
| Standby Power Consumption |
≤2.5 W. |
| Working Power Consumption |
≤10 W. |
| Installation |
Surface mount. |
| Casing Material |
PC + ABS. |
| Colour |
White. |
| Dimensions |
130 × 189 × 23.9 mm. |
| Gross Weight |
0.633 kg. |
| Operating Temperature |
-10°C to +55°C. |
| Storage Temperature |
-40°C to +70°C. |
| Operating Humidity |
10%–95% RH. |
| Operating Altitude |
0–3000 m. |
| Certification |
CE. |
| Included Accessories |
Power cord, RS-485 and power-output ribbon cable, alarm ribbon cable and mounting bracket. |
| Sold Separately |
2-wire controller. |
Ideal Use Cases
Residential Villas
Touchscreen intercom control, camera viewing and support for multiple extensions suit larger residential entry systems.
Apartments
Compact surface mounting, Wi-Fi connectivity and app integration suit individual apartment intercom installations.
2-Wire Retrofit Projects
The hybrid 2-wire architecture can suit compatible upgrades where existing cabling makes full recabling undesirable.
Small Offices
Door communication, alarm interfaces and camera viewing provide a flexible entry-monitoring platform for smaller workplaces.
App-Connected Intercom Systems
Compatible app support can extend call handling and alarm notifications beyond the indoor touchscreen itself.
Choosing the Right Model
- Choose the VTH5123H-W-S2 if: You need a 7-inch 2-wire hybrid indoor monitor with Wi-Fi, touchscreen operation, app management and alarm I/O.
- Choose a larger-screen model if: A larger viewing area is more important than the compact 7-inch form factor.
- Choose an IP-only model if: The installation is designed entirely around Ethernet/IP cabling rather than Dahua’s compatible 2-wire hybrid architecture.
- Add a microSD card if: Local video recording, snapshots or leave-video functionality is required.
FAQs
- What display does the Dahua VTH5123H-W-S2 use?
The Dahua VTH5123H-W-S2 uses a 7-inch TFT capacitive touchscreen with a resolution of 1024 × 600. The colour touch display provides the main interface for answering calls, viewing connected door stations or cameras, accessing intercom functions and navigating device settings. Its surface-mounted indoor design is intended for convenient use in apartments, villas and other compatible Dahua 2-wire hybrid intercom installations.
- Does the VTH5123H-W-S2 support Wi-Fi and app management?
Yes. The VTH5123H-W-S2 supports 2.4 GHz Wi-Fi using IEEE 802.11b/g/n and can work with Dahua app management. Dahua states that the app can receive calls and alarm notifications, while two-way audio with the app operates in full-duplex mode. Wi-Fi provides useful network flexibility, although the indoor monitor still requires its specified 2-wire system power arrangement.
- How does two-way audio work on the VTH5123H-W-S2?
The VTH5123H-W-S2 includes an audio input and built-in speaker with G.711a, G.711u and PCM audio compression. Two-way audio with a compatible VTO door station operates in half-duplex mode, while two-way audio through the app operates in full-duplex mode. Echo suppression and digital noise reduction are also supported to help improve speech clarity during intercom conversations.
- What storage does the VTH5123H-W-S2 support?
The VTH5123H-W-S2 supports a microSD card up to 64 GB. With a suitable card installed, the monitor can record videos and capture snapshots, and it also supports the leave-video function. The microSD card is required for those local recording functions, so it should be selected separately if recording or visitor-message storage is required in the installation.
- What alarm and control interfaces are available on the VTH5123H-W-S2?
The VTH5123H-W-S2 provides 6 alarm inputs, 1 alarm output and 1 RS-485 interface. It also provides one 12 V, 200 mA power output and supports a doorbell through an alarm input port. These interfaces allow the monitor to participate in broader intercom and alarm scenarios. For Security Wholesalers installations, the final wiring should be planned around the exact door station, controller and accessory requirements.
- How is the VTH5123H-W-S2 powered and installed?
The VTH5123H-W-S2 is designed to be powered through a compatible 2-wire controller and is surface mounted indoors. Dahua lists the 2-wire controller as sold separately and the power adapter as optional. The monitor measures 130 × 189 × 23.9 mm, operates from -10°C to +55°C and consumes no more than 2.5 W in standby or 10 W while working.
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