A video door phone is more than a live viewer—it is a security recorder. When motion is detected at your door, the system automatically captures video clips and snapshots. But where does that footage go? For FARHD’s 2-wire video door phone with a 10-inch indoor monitor, the answer is simple: a microSD memory card. This guide explains how motion detection recording works, why a memory card is essential, and how to set it up for reliable, local storage.
In modern residential buildings, security is not just about seeing who is at the door. It is about having a record of what happened—when a visitor arrived, what they looked like, and what they did. That is why motion detection recording has become a standard feature in video intercom systems.
The FARHD 2-wire video door phone system pairs a 10-inch IPS touchscreen indoor monitor with a weatherproof outdoor station. When motion is detected, the system triggers recording. The 10-inch monitor’s built-in microSD card slot stores those recordings locally—no cloud subscription, no privacy concerns, and no recurring fees.
This article covers everything you need to know about using a memory card for motion detection recording.
Why Motion Detection Recording Matters
Motion detection transforms a video intercom from a passive device into an active security tool. Instead of recording continuously (which fills storage quickly), the system only records when there is activity at the door.
Key benefits:
- Captures events you might miss – Even if you are not home, the system records who came to the door.
- Provides evidence – If a package goes missing or a stranger visits, you have video proof.
- Saves storage – Only records when needed, making efficient use of the memory card.
- Triggers alerts – Motion detection can also send push notifications to your smartphone via the Tuya/Smart Life app.
- Works 24/7 – The system monitors your entrance day and night, regardless of whether you answer the call.
For property managers and residents alike, motion detection recording adds a layer of security that live viewing alone cannot provide.
The Role of the Memory Card
The 10-inch indoor monitor includes a microSD card slot that supports up to 128GB of storage. This card is where all motion-triggered recordings—both photos and videos—are saved.
Without a memory card:
- The system can detect motion and send alerts (if connected to the app).
- But it cannot save the video or photo evidence.
- Once the event is over, there is no record.
With a memory card:
- Every motion event is automatically recorded and saved.
- You can review footage directly on the 10-inch monitor or through the Tuya app.
- The system uses loop recording to overwrite the oldest files when the card is full, so you always have the most recent footage.
The memory card is the difference between “knowing someone was there” and “having proof of who was there.”
How Motion Detection Recording Works on the FARHD 2-Wire System
The FARHD 2-wire video door phone system uses advanced motion detection to trigger recording. Here is how it works:
- Motion is detected – The outdoor station’s camera and PIR sensor detect movement within its field of view.
- Trigger is sent – The system sends a signal to the indoor monitor.
- Recording starts – The 10-inch monitor begins recording a video clip and captures a snapshot.
- Storage – The recording is saved to the microSD card in the indoor monitor.
- Notification (optional) – If connected to the Tuya/Smart Life app, a push notification is sent to the resident’s smartphone with a snapshot.
This entire process happens automatically, without any action required from the resident.
Setting Up Motion Detection Recording
Setting up motion detection recording on the FARHD 10-inch indoor monitor is straightforward. Follow these steps:
Step 1: Insert the Memory Card
- Locate the microSD card slot on the side or back of the 10-inch indoor monitor.
- Insert a microSD card (up to 128GB) until it clicks into place.
Step 2: Format the Card
- On the monitor, go to Settings → Storage → Format SD Card.
- This prepares the card for the system.
Step 3: Enable Motion Detection
- Navigate to Settings → Motion Detection (or similar menu).
- Turn on motion detection.
- Adjust sensitivity if needed (low, medium, high).
Step 4: Set Recording Preferences
- Select Record as the action when motion is detected.
- Choose whether to record video, snapshot, or both.
- Set the recording duration (e.g., 10 seconds, 30 seconds).
Step 5: Test the System
- Walk in front of the outdoor station to trigger motion.
- Check the indoor monitor or app to confirm that a recording was saved.
Note: Menu names may vary slightly by model. Refer to the user manual for specific instructions.
Memory Card Specifications and Recommendations
Not all microSD cards are equal. For reliable motion detection recording, choose a card that meets these specifications:
| Feature | Recommendation |
|---|---|
| Card Type | MicroSD (TF) card |
| Capacity | 32GB to 128GB (check your monitor’s maximum supported capacity) |
| Speed Class | Class 10 or UHS-I for smooth video recording |
| Durability | High-endurance card designed for continuous write cycles |
| Brand | Reputable brands like SanDisk, Samsung, Kingston |
Why capacity matters: A larger card holds more recordings. For most homes, 32GB–64GB is sufficient. For heavy traffic or longer retention, 128GB is ideal.
Why speed matters: A slow card can cause dropped frames or failed recordings. Class 10 ensures smooth, reliable video capture.
Why endurance matters: Video door phones write data continuously. A high-endurance card is designed for this workload and will last longer.
How Long Can You Record on a Memory Card?
The recording time depends on several factors:
- Card capacity – Larger cards hold more footage.
- Video resolution – Higher resolution files are larger.
- Recording frequency – More motion events mean more recordings.
- Clip length – Longer clips take up more space.
As a general guide:
| Card Capacity | Approximate Recording Time (Motion-Triggered, 1080P) |
|---|---|
| 32GB | 3–5 days |
| 64GB | 7–10 days |
| 128GB | 14–20 days |
With loop recording, the oldest files are automatically overwritten, so you always have the most recent footage.
Benefits of Local Storage vs. Cloud Storage
FARHD’s 2-wire video door phone uses local storage on a microSD card. This offers several advantages over cloud-based alternatives:
| Feature | Local Storage (Memory Card) | Cloud Storage |
|---|---|---|
| Cost | One-time purchase | Monthly subscription |
| Privacy | Data stays in your home | Data stored on third-party servers |
| Reliability | Works without internet | Requires internet connection |
| Access | Review on monitor or app | Review on app |
| Capacity | Limited by card size | Scalable (with fees) |
For residents who value privacy, cost-effectiveness, and offline reliability, a memory card is the clear choice.
Troubleshooting Common Issues
| Issue | Possible Cause | Solution |
|---|---|---|
| No recording saved | Card not inserted | Insert a microSD card |
| Card not formatted | Format the card via monitor settings | |
| Motion detection disabled | Enable motion detection in settings | |
| Card not recognized | Incompatible card | Use a Class 10 or UHS-I microSD card |
| Card faulty | Try a different card | |
| Recordings overwritten too quickly | Card too small | Use a larger capacity card |
| High motion frequency | Adjust sensitivity or recording duration | |
| Cannot play recordings | File format issue | Check monitor’s playback menu |
| Card corrupted | Reformat the card |
Technical Specifications (10-Inch Indoor Monitor)
| Feature | Specification |
|---|---|
| Display | 10.1-inch IPS touchscreen, 1280×800 resolution |
| Operating System | Linux |
| Memory Card Slot | MicroSD, up to 128GB |
| Motion Detection | Yes, with adjustable sensitivity |
| Recording | Video clips and snapshots on motion trigger |
| Loop Recording | Yes, automatically overwrites oldest files |
| App Integration | Tuya / Smart Life (remote view and notifications) |
| Connection | 2-wire, non-polarity, up to 100 metres |
| Power Supply | 15V 1.2A adapter (indoor monitor powers outdoor station) |
| Weatherproof | IP65 outdoor station |
| Operating Temperature | -40°C to +70°C |
Why Choose FARHD for Your 2-Wire Video Door Phone?
FARHD has been designing and manufacturing video intercom systems since 1998, with over 28 years of industry experience. Our 2-wire systems with 10-inch monitors are trusted in over 90 countries for their reliability, ease of use, and robust recording capabilities.
Key advantages:
- Source factory – Factory-direct pricing, full quality control
- 2-wire simplicity – Reuses existing wiring, non-polarity, up to 100m
- 10-inch IPS monitor – Large screen for easy viewing and playback
- Motion detection recording – Captures video and photos automatically
- Local storage – MicroSD card up to 128GB, no cloud fees
- Tuya app integration – Remote access and notifications
- OEM/ODM ready – Custom branding, packaging, and software
- No MOQ for trial orders – Start with a sample; scale as you grow
- Global certifications – CE, FCC, RoHS, IP65, EMC
Our products are installed in thousands of apartments, villas, and residential projects worldwide.
Conclusion: Never Miss a Moment with Motion Detection Recording
Motion detection recording turns your 2-wire video door phone into a powerful security tool. With a 10-inch indoor monitor and a microSD memory card, you can capture video clips and snapshots whenever someone approaches your door—automatically, reliably, and without cloud fees.
Whether you are a homeowner, property manager, or system integrator, FARHD’s 2-wire video door phone system delivers the recording capabilities you need for peace of mind.
Ready to upgrade your entrance security?
Email: info@farhd.com
Website: www.farhd.com
WhatsApp: +86 188 2370 9809 / +86 199 2545 1918
FARHD – Video Intercom Manufacturer Since 1998.
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Post time: Oct-07-2026
