AirShield Leak Detector: prevent water damage
The AirShield Leak Detector is a compact wireless water detector that raises an immediate alarm as soon as it detects water. Ideal for use near a washing machine, dishwasher, boiler room or under a sink, exactly where a leak can cause major damage.
You place the detector (Dahua ARD912-W2(868)) horizontally on the floor at a risk point. With a splash-resistant IPX5 housing, two-way communication on 868 MHz and a range of up to 1,200 m, you receive a quick and reliable notification.
Why the AirShield Leak Detector
Instant alarm on water
As soon as the sensor detects water, it immediately sends a notification to your hub and phone. This lets you step in before a leak turns into damage.
Simply on the floor
Place the detector horizontally on the floor at the spot where a leak first becomes visible. No cabling, installed in no time.
Splash-proof and safe
An IPX5 housing against splashing water, plus two-way communication on 868 MHz with AES128 and frequency hopping against interference.
Years on one battery
Runs on a supplied CR123A battery with a service life of up to 3 years. Also shows the ambient temperature, with an overheating alarm.
Product photos





Technical specifications
| Detection | |
| Type | Wireless water leak detector |
| Alarm | Immediate alarm on water detection |
| Placement | Horizontally on the floor |
| Extra | Shows ambient temperature, with overheating alarm |
| Wireless | |
| Frequency | 868,0 to 868,6 MHz |
| Communication | Two-way, AES128 encrypted, with frequency hopping |
| Range | Up to approx. 1,200 m in open field |
| Maintenance | Cloud updates |
| General | |
| Protection | IPX5 (splash-proof) |
| Power supply | 1x CR123A battery, up to approx. 3 years |
| Mounting | On the floor, indoors |
| Model | ARD912-W2(868) |
Leak Detector or Flex?
Both raise an instant alarm as soon as they detect water and are splash-proof (IPX5). The Flex has adjustable sensitivity and can be placed on the floor or on the wall, useful in awkward spots.
| Model | Placement | Sensitivity | Protection | Battery |
|---|---|---|---|---|
| Leak Detector | On the floor | Fixed | IPX5 | CR123A, up to 3 years |
| Leak Detector Flex | Floor or wall | Adjustable | IPX5 | CR123A, up to 3 years |
Both work wirelessly on 868 MHz with two-way communication and AES128 encryption, and pair with the same AirShield hub. Place the detector as close as possible to a risk point.
Notifications and expansion
An immediate notification in the DMSS app
As soon as a detector is triggered, the AirShield hub sends a push notification to your phone. In the free Dahua DMSS app you can see which detector was triggered and in which room, and you can arm and disarm your system. No subscription, on iPhone and Android.
No AirShield system yet?
This detector works with the wireless AirShield hub from Dahua. Put your system together room by room with the configurator, or have everything installed by our VEB-approved installers.
Frequently asked questions
What do I use this detector for?
For quickly noticing water leaks at a washing machine, dishwasher, boiler room, sink or any other place where water can cause damage.
Is cabling required?
No. The detector works wirelessly on battery and communicates directly with the AirShield hub on 868 MHz.
Can it withstand moisture?
Yes, the housing has an IPX5 protection rating against splashing water. The product is intended for indoor use.
What is the difference from the Flex version?
The Leak Detector Flex has adjustable sensitivity and can be placed on the floor or on the wall. This version is placed horizontally on the floor.
In the box
AirShield Leak Detector
The leak detector itself.
Mounting materials
Mounting materials.
CR123A-batterij
Included.





















