The Dahua DHI-ARM7012-W2 is a smart wireless wall switch that lets users remotely control high-voltage appliances using RF communication. It’s built for security integration, power monitoring, and protection—making it perfect for automation or energy-conscious environments. With support for overload, overheating, and cloud-based updates, it’s reliable for both residential and commercial installs.
Key Features
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Remote Power Control - Switch 100–240V AC devices on or off from the app or alarm system.
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Energy Monitoring - Actively tracks voltage, current, and energy use for smarter management.
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Overload & Overheat Protection - Auto-disconnects if unsafe temperatures or current spikes are detected.
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Two-Way RF Communication - Sends and receives commands reliably with real-time status updates.
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Long-Range Wireless - Operates up to 800m in open space via 433 MHz frequency hopping.
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AES128 Encryption - Secures communication between switch, hub, and app.
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Cloud Firmware Updates - Automatically receives updates and restores if failed.
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Compact Wall-Mount Design - Installs neatly into electrical boxes and wall plates.
Perfect For:
- Garage door motor control
- Electric gate or shutter automation
- Remote lighting for villas or warehouses
- HVAC control in retail or offices
- Smart energy monitoring in residential installs
- Integration with alarm systems for power-triggered automation
Install Tips
- Install within RF line of sight to hub where possible to maximize range.
- Ensure proper ventilation behind the wall to help manage heat dissipation.
- Use in combination with a Dahua alarm hub to trigger automations (e.g., lights on alarm).
- Not suitable for outdoor/exposed areas — indoor use only.
- Secure the device inside a standard wall box with suitable insulation for high-voltage circuits.
- Always double-check live/neutral wiring before applying power to avoid arcing.
Downloads
Quick-Read Specs Card
| Spec |
Details |
| Relay Output |
1 × NO/NC (100–240 VAC, Max 13 A) |
| Communication |
Two-way RF, 433.1–434.6 MHz |
| Range |
800m (open space) |
| Encryption |
AES128 + Frequency Hopping |
| Power Supply |
100–240 VAC, 50/60 Hz |
| Protection |
Overload, Overheat, Overvoltage |
| Monitoring |
Voltage, Current, Energy |
| Mounting |
Wall mount |
| Dimensions |
39 × 33 × 19 mm |
| App Integration |
DMSS / Dahua alarm hubs |
| Certifications |
CE |
Extra Info
Smart Relay with Safety First
This device goes beyond the capabilities of a standard power switch—it functions as an intelligent smart relay with integrated safety features designed to protect both the switch and any connected equipment. If it detects abnormal operating conditions such as excessive current draw or overheating, it automatically disables power output to prevent potential hazards like electrical fires, short circuits, or equipment damage. This proactive shutdown mechanism ensures safer operation in residential and commercial settings, especially when powering appliances or critical devices.
Energy Visibility in Real Time
One of the standout features of this smart relay is its real-time energy monitoring capability. Users can view live power consumption data and track energy usage trends over time directly through the connected app or system dashboard. This makes it an ideal solution for energy-conscious homeowners or facility managers looking to optimize power usage, reduce electricity bills, or identify high-consumption devices. When integrated with other smart devices in the Dahua ecosystem, users can analyze energy load distribution across multiple zones or appliances, making the entire property more efficient and manageable.
Reliable Communication with Your System
To ensure secure and uninterrupted communication with the alarm system and control platform, the WallSwitch employs AES128 encryption combined with frequency hopping spread spectrum (FHSS) technology. These advanced wireless protocols protect command signals from interference, hacking attempts, or signal jamming—a crucial feature in environments where communication reliability and data security are top priorities. This secure wireless connection guarantees that every on/off command or automation routine is executed accurately and without delay.
Part of a Larger Ecosystem
Designed to seamlessly integrate into the broader Dahua smart security ecosystem, the WallSwitch works in harmony with the DMSS mobile app and other connected devices in your alarm system. Users can configure custom automation scenes, such as powering down appliances when the system is armed or activating lights during an alarm event. Scheduling capabilities let you automate on/off cycles based on time or day, while remote control functionality means you can manage your power settings from anywhere, whether you're at home, at work, or away on vacation. This centralized control enhances convenience, security, and energy efficiency throughout your property.
Q&A
Q: Can this switch control high-voltage devices like heaters or pumps?
Yes, it supports up to 13A at 100–240VAC, which is sufficient for many appliances including heaters, lights, fans, or pumps.
Q: Is it safe for continuous operation?
Yes. The switch has built-in overheat and overload protection, making it suitable for long-term use.
Q: Does it work with other RF devices or only Dahua?
It’s designed for Dahua systems, especially Dahua alarm hubs and DMSS app. It may not be compatible with non-Dahua RF controllers.
Q: How far can it be from the alarm hub?
Up to 800 meters in open space. Indoors, range depends on wall materials and interference.
Q: Can I see energy usage in the app?
Yes. When integrated with a supported Dahua hub and app, energy monitoring data is viewable.
Q: What happens during a firmware update failure?
The device automatically recovers and restores previous settings if a cloud update fails.
Q: Can it be installed outdoors?
No. This model is designed for indoor installation only.
