1. Introduction
The TMEZON 7 Inch 4-Wire 1080P Video Doorbell Intercom System offers advanced security and convenience for your home or office. Featuring a 7-inch touch screen monitor and a 1080P wired outdoor camera, this system allows you to see, hear, and speak to visitors, and even remotely unlock your door via the Tuya Smart app on your smartphone. With RFID card access and motion detection, it provides comprehensive monitoring and control.
Figure 1: TMEZON Video Doorbell Intercom System Overview
2. Package Contents
Please check the package to ensure all items are present:
- 7-inch Indoor Touch Screen Monitor
- 1080P Wired Outdoor Doorbell Camera
- Power Adapter for Monitor (EU Plug)
- Mounting Bracket and Screws
- Wiring Cables (4-wire)
- RFID Cards (8 included)
- User Manual
Figure 2: Package Contents
3. Specifications
| Feature | Specification |
|---|---|
| Brand Name | TMEZON |
| Model Number | MZ-AHD7-NE201 |
| Display Screen Size | 7 inches |
| Display Screen Type | Color Touch Screen |
| Monitor Dimensions | 194mm x 124mm x 24mm |
| Outdoor Unit Dimensions | 67mm x 132mm x 23mm |
| Resolution | 1080p |
| Camera Sensor Type | CMOS, 1/4 inch |
| Viewing Angle | 110° |
| Night Vision | Yes (Built-in infrared sensor) |
| Waterproof | Yes (Rainproof, dustproof, anti-vandal outdoor unit) |
| Connection Method | Wired (4-wire system) |
| Wi-Fi Support | 2.4GHz only (for app connectivity) |
| Smart Home Platform | Tuya Smart |
| Access Control | Remote Unlock (App/Monitor), RFID Card, Number Code |
| Max. SD Card Support | 256GB (Micro SD card not included) |
| Intercom Configuration | Supports up to 2 outdoor doorbells and 4 indoor monitors |
| Power | 12V |
| Material | Metal |
| Installation | Wall Mounting |
| Certification | CE |
Figure 3: Product Dimensions
4. Setup Instructions
4.1. Physical Installation and Wiring
The TMEZON intercom system uses a 4-wire connection between the outdoor doorbell camera and the indoor monitor. Ensure all power is disconnected before beginning installation.
- Mount the Outdoor Unit: Choose a suitable location near your door, ensuring it's within reach of the 4-wire cable and at an appropriate height for visitors. Use the provided mounting bracket and screws to secure the outdoor unit to the wall. The outdoor unit is designed to be rainproof, dustproof, and anti-vandal.
- Mount the Indoor Monitor: Select a convenient indoor location for the 7-inch monitor. Secure its mounting bracket to the wall using screws.
- Connect Wiring: Connect the 4-wire cable from the outdoor doorbell camera to the indoor monitor. Ensure correct polarity and secure connections. The maximum distance between the doorbell panel and the last monitor can be up to 100 meters.
- Connect Power: Plug the monitor's power adapter into a standard electrical outlet.
- Connect Electronic Lock (Optional): If using an electronic lock, connect it to the outdoor doorbell unit according to the lock's instructions. The outdoor unit can connect to most types of 12V electronic locks.
4.2. Wi-Fi Connection and App Setup (Tuya Smart)
The indoor monitor supports 2.4GHz Wi-Fi for integration with the Tuya Smart app. Ensure your home Wi-Fi network is 2.4GHz, as 5GHz is not supported.
Video 1: How to add the device to the Tuya Smart Mobile App
Method 1: Wi-Fi Connection via App Discovery
- Enter Settings on Monitor: On the indoor monitor, tap the 'Settings' icon.
- Select Network: Navigate to 'Network' settings.
- Connect to 2.4GHz Wi-Fi: Select your 2.4GHz Wi-Fi network and enter the password to connect the monitor.
- Connect Smartphone to Same Wi-Fi: Ensure your smartphone is connected to the same 2.4GHz Wi-Fi network as the monitor.
- Add Device in Tuya Smart App: Open the Tuya Smart app. Click 'Add Device' and then 'Discovering devices'. Choose the available device found to add.
- Complete Connection: Follow the on-screen prompts in the app to complete the connection. Once successful, you will see the live view from the doorbell camera.
Method 2: Add New IP Monitor by Scanning QR Code
- Connect 2.4GHz Wi-Fi for Monitor: Follow steps 1-3 from Method 1 to connect your monitor to the 2.4GHz Wi-Fi network.
- Display QR Code on Monitor: Go to the 'Network-QR code' menu interface on the indoor monitor. Users can preview the indoor monitor QR code.
- Scan QR Code in Tuya Smart App: Open the Tuya Smart app. Click 'Add Device' and then tap 'Scan' (usually an icon in the top right corner) to scan the QR code displayed on the monitor.
- Complete Connection: Follow the on-screen prompts in the app to complete the connection. Once successful, you will see the live view from the doorbell camera.
Figure 4: Tuya Smart App Interface for Remote Access
5. Operating Instructions
5.1. Answering Calls and Two-Way Audio
When a visitor presses the doorbell, the indoor monitor will ring and display the live video feed. Your smartphone will also receive an APP notification.
- From Monitor: Tap the 'Answer' button on the touch screen to initiate two-way audio communication.
- From Smartphone: Open the Tuya Smart app from the notification. You can then see, hear, and talk to the visitor.
Figure 5: Two-Way Audio Communication
5.2. Door Unlocking
The system offers multiple ways to unlock your door:
- Remote Unlock (App/Monitor): During a call or live view, tap the 'Unlock' icon on the indoor monitor or in the Tuya Smart app to open the connected electronic lock.
- RFID Card Unlock: Present a pre-programmed RFID card to the outdoor doorbell unit's RFID reader to unlock the door. Eight RFID cards are included.
- Number Code Unlock: If configured, visitors can enter a pre-set number code on the outdoor unit to unlock the door.
Figure 6: RFID Card Unlock Feature
5.3. Automatic Snapshot or Video Recording
The system can automatically capture events:
- Visitor Pressing Doorbell: When a visitor presses the doorbell, the system can automatically take a snapshot or record a video.
- Motion Detection: If motion detection is enabled, the system will automatically take a snapshot or record a video when movement is detected in the camera's field of view.
All recordings and snapshots are stored on a Micro SD card (up to 256GB, not included) inserted into the indoor monitor. You can review these recordings at any time via the monitor or the Tuya Smart app.
Figure 7: Snapshot/Video Record and Playback via App
5.4. Motion Detection
The outdoor unit features motion detection to enhance security. When motion is detected, the system can trigger recording or snapshots, and send notifications to your smartphone.
Figure 8: Motion Detection Area
5.5. Multiple Intercoms and Call Transfer
The system supports connecting up to 2 outdoor doorbells with up to 4 indoor monitors. This allows for:
- Inter-Monitor Communication: You can communicate between different indoor monitors within your property.
- Call Transfer: Calls from the outdoor unit can be transferred between indoor monitors.
Figure 9: Multi-User Access and Sharing
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the monitor screen and outdoor unit. Avoid abrasive cleaners or solvents.
- Firmware Updates: Periodically check the Tuya Smart app or TMEZON's official website for firmware updates to ensure optimal performance and security.
- SD Card Management: Regularly back up important recordings from the Micro SD card. Consider formatting the SD card periodically to maintain recording efficiency.
- Power Supply: Ensure the monitor's power adapter is securely plugged into a stable power source.
7. Troubleshooting
7.1. Common Issues & Solutions
- No Video/Audio from Outdoor Unit:
- Check all 4-wire connections between the outdoor unit and the indoor monitor for proper seating and polarity.
- Ensure the monitor is powered on.
- Monitor Not Connecting to Wi-Fi:
- Verify your Wi-Fi network is 2.4GHz. The system does not support 5GHz Wi-Fi.
- Ensure the Wi-Fi password is entered correctly.
- Move the monitor closer to your Wi-Fi router to improve signal strength.
- Restart your router and the indoor monitor.
- App Notifications Not Received:
- Check your smartphone's notification settings for the Tuya Smart app to ensure they are enabled.
- Verify your smartphone has a stable internet connection (Wi-Fi or mobile data).
- Ensure the monitor is connected to Wi-Fi and linked to your Tuya Smart account.
- Door Unlock Not Working:
- For electronic locks, ensure they are correctly wired to the outdoor unit and receiving power.
- For RFID cards, ensure they are properly programmed.
- Check the unlock settings in the monitor's menu or Tuya Smart app.
- Poor Night Vision Quality:
- Ensure the outdoor unit's camera lens is clean and free from obstructions.
- Verify there are no strong light sources directly facing the camera at night, which can interfere with infrared.
7.2. Contact Support
If you encounter issues not covered here, please refer to the technical e-mail address provided in the manual included in your package for further assistance from a TMEZON technician.
8. User Tips
- Secure Your Wi-Fi: Always use a strong, unique password for your 2.4GHz Wi-Fi network to protect your system from unauthorized access.
- Regularly Check Recordings: Even if you don't receive notifications, it's a good practice to periodically review recorded footage on your SD card to catch any unnoticed events.
- Customize Ring Tones: The monitor offers various ring tones. Choose one that is easily distinguishable and audible throughout your home.
- Consider Multiple Monitors: For larger homes or multi-story buildings, installing additional indoor monitors can significantly improve convenience and response time to visitors.
9. Warranty and Support
TMEZON products are designed for reliability and performance. For specific warranty details, please refer to the warranty card or documentation included with your purchase. For technical support, please use the contact information provided in your product's physical user manual.
