VTH5421EW-H - Intercom Dahua Technology - Free user manual and instructions
Find the device manual for free VTH5421EW-H Dahua Technology in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | Video Intercom |
| Brand | Dahua Technology |
| Model | VTH5421EW-H |
| Display | 5-inch capacitive touch screen |
| Camera Resolution | 2 MP (1920x1080) |
| Audio | Two-way full duplex with echo cancellation |
| Power Supply | PoE (802.3af) or 12V DC 1.5A |
| Power Consumption | ≤ 8W |
| Dimensions (W x H x D) | 200 x 130 x 25 mm |
| Weight | 0.5 kg |
| Network Connection | 10/100 Mbps Ethernet (RJ45) |
| Main Functions | Video calling, door release, monitoring, intercom, motion detection |
| Night Vision | IR LED, up to 5m range |
| Storage | MicroSD card slot (max 128GB) |
| Operating Temperature | -10°C to 55°C |
| Humidity | 10% to 95% non-condensing |
| Installation | Surface mount or flush mount with optional back box |
| Accessories Included | Mounting bracket, screws, quick start guide |
| Compatibility | Dahua VTO door stations and NVRs |
| Security | SSL/TLS encryption, user password protection |
| Maintenance | Clean with soft dry cloth; avoid liquids |
| Spare Parts / Repairability | Contact authorized service center; no user-serviceable parts |
Frequently Asked Questions - VTH5421EW-H Dahua Technology
How do I install the VTH5421EW-H?
Connect the unit to a PoE switch or power adapter, run Ethernet cable from the doorbell (VTO) or network, mount on a standard wall box using included bracket, and power on. Refer to the manual for wiring details.
Can I connect this intercom to my smartphone?
Yes, using the DMSS app. The intercom must be connected to the same network as your phone. Register the device in the app via scanning the QR code or entering the device ID.
How to reset the VTH5421EW-H to factory settings?
Press and hold the reset button (hidden near the SD card slot) for 10 seconds using a paperclip until the device restarts. All settings will be erased.
Why is there no audio during a call?
Check that the microphone and speaker are not muted. Ensure the call is established properly. Verify network bandwidth is sufficient (at least 2 Mbps). Try rebooting the unit and door station.
Can I record video from the intercom?
Yes, insert a microSD card (up to 128GB) into the slot. The intercom can record on motion detection or schedule. Recordings can be viewed on the device or via DMSS app.
How to add multiple indoor stations?
Each indoor station must be registered with the same VTO door station via the PC configuration tool. Assign different device numbers to avoid conflicts.
What does the 'Call' button do?
The 'Call' button initiates a call to a programmed extension or the door station. You can set up speed dial numbers in the device settings.
Can I unlock the door remotely?
Yes, during a video call, press the unlock icon on the screen. Also, you can unlock via the DMSS app if the intercom is connected to the internet.
The touch screen is unresponsive. What should I do?
Clean the screen with a soft, dry cloth to remove any oil/fingerprints. If still unresponsive, perform a soft reboot by disconnecting power for 30 seconds. If problem persists, contact support.
How to update firmware?
Download the latest firmware from Dahua's website. Place the .bin file on a microSD card, insert into the unit, go to Settings > About > Upgrade, and select the file. Do not power off during update.
User questions about VTH5421EW-H Dahua Technology
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Intercom in PDF format for free! Find your manual VTH5421EW-H - Dahua Technology and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. VTH5421EW-H by Dahua Technology.
USER MANUAL VTH5421EW-H Dahua Technology
Manual assistant
Powered by Anthropic
Waiting for your message
Product information
Brand : Dahua Technology
Model : VTH5421EW-H
Category : Intercom