X72A2A1 - Video recorder Dahua Technology - Free user manual and instructions
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| Product Type | Video Recorder (DVR/NVR) |
| Brand | Dahua Technology |
| Model | X72A2A1 |
| Dimensions (W x D x H) | 300 mm x 200 mm x 44 mm |
| Weight | 1.5 kg |
| Power Supply | 12V DC, 2A |
| Video Input Channels | 4 channels |
| Recording Resolution | Up to 1080p |
| Storage Capacity | Up to 4TB (internal HDD, not included) |
| Network Interface | 1x RJ45 10/100 Mbps |
| Remote Viewing | Yes (via Dahua app or web browser) |
| Playback Function | Simultaneous playback and recording |
| Motion Detection | Yes (configurable zones) |
| Audio Support | 1x audio input, 1x audio output |
| Alarm I/O | 4 inputs / 1 output |
| Operating Temperature Range | 0°C to 45°C |
| Power Consumption | < 10W (without HDD) |
| Maintenance Instructions | Keep ventilated, clean dust regularly, avoid moisture |
| Safety Precautions | Use only supplied adapter, do not cover ventilation holes |
| Spare Parts / Repairability | HDD and power adapter replaceable. Contact Dahua support for other parts. |
| Certifications | CE, FCC |
Frequently Asked Questions - X72A2A1 Dahua Technology
How do I reset the X72A2A1 to factory defaults?
Press and hold the reset button on the back panel for 10 seconds until you hear a beep. This will restore all settings to factory defaults without deleting recorded footage.
Can I access the recorder remotely from my smartphone?
Yes, download the Dahua DMSS app (iOS/Android) and scan the QR code on the device or enter the serial number to add it. Ensure the recorder is connected to the internet.
What hard drive types are compatible?
The recorder supports 3.5-inch SATA III hard drives up to 4TB. For 24/7 recording, use a surveillance-rated drive like WD Purple or Seagate SkyHawk.
How many cameras can I connect?
The X72A2A1 supports up to 4 channels of analog or IP cameras (depending on model variant). Use BNC connectors for analog or Ethernet for IP.
Why is my recorder not turning on?
First, check the power adapter connection and ensure the outlet works. If using a PoE switch, verify the switch is powered. Try a different 12V DC adapter if available.
Can I view footage without an internet connection?
Yes, plug a monitor directly into the HDMI or VGA port of the recorder. Use the USB mouse to navigate the local interface.
How do I set up motion detection alerts?
Go to Configuration > Event > Motion Detection, enable it, draw detection zones, and set schedule. Then configure email or push notifications in Network > Email or app settings.
What is the maximum recording frame rate?
At 1080p resolution, each channel can record up to 15 fps (frames per second) with all channels active. Lower resolution allows higher fps.
How to update the firmware?
Download the latest firmware from Dahua's official website. Save the .bin file to a USB drive. Insert it into the recorder's USB port and go to Maintenance > Upgrade.
The recorder keeps beeping. What does it mean?
Continuous beeping usually indicates a hard drive error or temperature warning. Check the System > Logs for details. Replace the HDD if necessary.
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USER MANUAL X72A2A1 Dahua Technology
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Product information
Brand : Dahua Technology
Model : X72A2A1
Category : Video recorder