This compact wireless sensor detects indoor water leaks from sources like pipes, sinks, or appliances and immediately sends alerts to help prevent water damage. It's battery-powered, easy to install, and built with encrypted wireless communication and cloud-update functionality. Ideal for hassle-free monitoring in homes or commercial environments.
Key Features
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Wireless & Encrypted Communication – Secure, stable signal with frequency hopping and AES128 encryption.
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Real-Time Alerts – Sends instant notifications when water is detected.
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Battery Powered & Long-Lasting – Runs up to 3 years on a single CR123A battery.
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Temperature Monitoring – Displays ambient temperature and warns of overheating.
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Adjustable Sensitivity – Lets you fine-tune detection to suit specific environments.
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Cloud Update Support – Automatically restores if updates fail.
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Low Battery Detection – Notifies you when it’s time to replace the battery.
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Compact & Discreet – Small form factor for unobtrusive installation.
Perfect For:
- Under kitchen or bathroom sinks
- Behind washing machines and dishwashers
- Commercial kitchens
- Basements or crawl spaces
- Server or IT rooms
- Holiday homes or rental properties
Install Tips
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Ideal Mounting: Place on flat surfaces near water sources (like sink bases or washing machine pans).
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Avoid Splash Zones: Do not submerge. The unit is water-resistant (IPX5), not waterproof.
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Trigger Height: Sensor pads must make contact with water — avoid high-pile carpets.
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Pair First: Pair the device to your hub before physical installation.
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Battery Access: Ensure battery compartment is accessible for future replacements.
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Test Regularly: Use a damp cloth periodically to simulate leaks and confirm proper alerts.
Downloads
Quick-Read Specs Card
| Feature |
Detail |
| Sensor Type |
Water leak detection (adjustable) |
| Temperature Monitoring |
Yes + Overheat Alarm |
| Wireless Range |
Up to 800 m (open space) |
| Wireless Protocol |
RF 433 MHz (Two-way + frequency hopping) |
| Encryption |
AES128 |
| Battery Type |
CR123A (1×) |
| Battery Life |
Up to 3 years (1 trigger/day) |
| Mounting |
Plane mount (indoor use) |
| Casing |
PC + ABS |
| Weather Protection |
IPX5 |
| Certifications |
CE, FCC |
Extra Info
Wireless Security with AES Encryption
The Dahua DHI-ARD912-W2 is designed with security at its core, utilizing a 433 MHz wireless transmission protocol enhanced with frequency hopping spread spectrum (FHSS) and AES128 encryption. This dual-layer wireless protection ensures stable, interference-resistant communication between the leak detector and your central alarm hub. It safeguards against signal interception, spoofing, and jamming—making it ideal for both residential and commercial environments where dependable security is essential.
Cloud-Ready for Long-Term Support
The detector is cloud-upgradable, allowing firmware updates to be delivered remotely through your connected system or app. This enables the device to stay current with new features, performance improvements, or security patches without requiring manual intervention. Even in the event of a failed update—due to power loss or connectivity issues—the device has an auto-recovery mechanism that rolls it back to its last stable firmware version. This ensures it’s always operational and ready to provide protection when needed.
Built-In Temperature Display & Overheat Alarm
More than just a water leak detector, the DHI-ARD912-W2 features a built-in temperature sensor that continuously monitors ambient conditions. If the surrounding temperature exceeds a defined threshold, it triggers an overheat alert, providing early warning of heat-related risks such as HVAC failure, electrical overloads, or potential fire hazards. This makes the unit a versatile addition to kitchens, laundry areas, server rooms, or basements—offering dual protection from both water damage and heat exposure.
Q&A
Q: Can this detect very small leaks or moisture buildup?
A: Yes, its sensitivity can be adjusted to detect small amounts of water, making it suitable for early-stage leak alerts.
Q: Does it need to be plugged into power?
A: No, it is fully battery-operated and installs without any wiring.
Q: Is the battery included?
A: Typically yes, a CR123A battery is included in the box. Always check with your supplier.
Q: Can it be used outdoors or in wet rooms?
A: It's rated IPX5, so it can handle splashes but not direct submersion or outdoor exposure. It's designed for indoor use only.
Q: Will it work with third-party alarm hubs?
A: It is designed to work with Dahua alarm hubs. Compatibility with other brands may vary.
Q: How will I know if the battery is running low?
A: The sensor includes low battery detection and will notify the connected alarm system when the battery needs replacing.
Q: Does it store event history or logs?
A: Event history depends on the connected alarm system or app, not the sensor itself.
Q: How often should I test it?
A: Test monthly by applying a small amount of water to the sensor pads to ensure it's functioning correctly.
