Dahua DHI-ARD912-W2(D) Wireless Water Leak Detector
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Vendor:
Dahua
Dahua DHI-ARD912-W2(D) Wireless Water Leak Detector
SKU: DHI-ARD912-W2(D)
Description
The Dahua DHI-ARD912-W2(D) is a wireless water-leak detector for the Dahua AirShield alarm system. Place it on the floor by a washing machine, dishwasher, hot-water unit or under a sink and it raises an alarm the moment water reaches its probe, so you catch a leak before it does real damage. This (D) version has an adjustable-height probe, so you can set how deep the water has to pool before it alarms, and the casing is IPX5 water-resistant. It links to your AirShield hub over an encrypted two-way RF connection. An AirShield hub is required and sold separately.
Key points
- Alarms as soon as water reaches the probe
- Adjustable-height probe sets the trigger depth and sensitivity
- IPX5 water-resistant casing; no wiring, easy to place
- Encrypted two-way RF link with frequency hopping and jamming detection
- Ambient temperature display and overheat alarm
- CR123A battery, around 3 years; indoor; requires an AirShield hub
Delivery, warranty & returns · 3-year warranty · shipped from Australian stock
- Tracked delivery on every order. The tracking number is emailed as soon as it ships.
- Metro delivery: 2–4 business days. Regional areas may take longer. Free standard shipping over $300, flat $25 under.
- 3-year warranty on cameras and recorders, back-to-base, plus your Australian Consumer Law rights.
- 30-day returns on unopened items. Faulty on arrival? We cover return shipping.
- Genuine Australian stock. Never grey imports. Prices include GST.
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Dahua DHI-ARD912-W2(D) Wireless Water Leak Detector
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All cameras, NVRs and DVRs come with a 3-year back-to-base manufacturer warranty covering defects in materials and workmanship, in addition to your rights under Australian Consumer Law. Hard drives and accessories are covered as set out in our Warranty Policy.
Standard shipping is free on all orders over $300 AUD, Australia-wide. Orders under $300 ship at a flat rate of $25, calculated at checkout. Tracking is included on every order.
You have 30 days from the day you receive your order to request a change-of-mind return. Items must be unopened, factory-sealed and in resalable condition. A 15% restocking fee applies and return postage is at your cost. Faulty or incorrectly supplied items are different: we cover the return shipping and refund or replace at no charge. Read the full Return & Refund Policy.
Metro delivery usually takes 2–4 business days after dispatch, and regional areas may take longer. You'll receive a tracking number by email as soon as your order leaves the warehouse.
01Overview
What the DHI-ARD912-W2(D) is
The Dahua DHI-ARD912-W2(D) watches for water where you do not want it. Set it on the floor near a washing machine, dishwasher, hot-water system, sink or pipe run, and it raises an alarm the instant water bridges its probe — early warning that turns a quiet leak into a phone notification before it soaks a floor or ceiling. The (D) version's probe height is adjustable: raise it with the screw and it takes more water to alarm, lower it and it catches the first thin film, so you can tune it to the spot and keep nuisance triggers down.
It is quick to live with. There is no wiring — it mounts flat with screws or sits on the floor — and it links to the hub over a two-way RF connection with frequency hopping, AES128 encryption and jamming detection. Beyond leaks it also reports the ambient temperature and can raise an overheat alarm, useful near a hot-water unit or in a plant room, and a multi-status LED plus the DMSS app keep you across power, pairing and alarm state.
A few honest notes: the casing is IPX5 water-resistant so it copes with splashes and a damp floor, but it is a leak sensor, not a submersible probe. This model does not have a tamper switch, unlike some other AirShield detectors. It runs on a CR123A cell for around three years when it triggers about once a day, and like every AirShield device it needs a hub to work — confirm its RF band matches your hub when you order. It is genuine Australian Dahua stock with local 3-year warranty and support.
02Engineering
DHI-ARD912-W2(D) specifications
- Wireless water-leak detector for the Dahua AirShield alarm system
- Alarms as soon as water reaches the probe
- (D) adjustable-height probe sets the trigger depth and sensitivity
- IPX5 water-resistant casing; plane or wall mount, no wiring
- Two-way RF communication with frequency hopping, AES128 and jamming detection
- Ambient temperature display and overheat alarm; low-battery warning; cloud update
- CR123A battery, around 3 years of life (triggered about once a day)
- Indoor (-10 to +55 C); no tamper switch on this model; requires an AirShield hub
- Alarms as soon as water reaches the probe
- (D) adjustable-height probe sets the trigger depth and sensitivity
- IPX5 water-resistant casing; plane or wall mount, no wiring
- Two-way RF communication with frequency hopping, AES128 and jamming detection
- Ambient temperature display and overheat alarm; low-battery warning; cloud update
- CR123A battery, around 3 years of life (triggered about once a day)
- Indoor (-10 to +55 C); no tamper switch on this model; requires an AirShield hub
03Full datasheet
Detailed specifications
Network & Storage
| Feature | Detail |
|---|---|
| Remote Update | Cloud update |
| Carrier Frequency | 433.1 MHz–434.6 MHz |
| Communication Mechanism | Two-way |
| Communication Distance | Up to 800 m (2624.67 ft) in an open space |
| Encryption Mode | AES128 |
| Frequency Hopping | Yes |
Event & Alarm
| Feature | Detail |
|---|---|
| Sensor | Water leak detector |
| Sensitivity | Adjustable |
| Low Battery Detection | Yes |
| Tamper | No |
Interface
| Feature | Detail |
|---|---|
| Indicator Light | 1 for multiple statuses (pairing, power status, and alarm) |
| Button | Power switch button |
General & Environment
| Feature | Detail |
|---|---|
| Power Supply | CR123A × 1 |
| Battery Life | 3 years when triggered once a day. |
| Power Consumption | Max 144 mW |
| Operating Current | 28.5 uA |
| Alarm Current | 5.8 mA |
| Operating Temperature | Indoor: –10 °C to +55 °C (+14 °F to +131 °F) |
| Operating Humidity | 10%–90% (RH) |
| Storage Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| Storage Humidity | 10%–90% (RH) |
| Product Dimensions | 84.7 mm × 84.7 mm × 32.5 mm (3.33" × 3.33" × 1.28") |
| Packaging Dimensions | 135.0 mm × 98.0 mm × 56.0 mm (5.32" × 3.86" × 2.20") |
| Net Weight | 0.1 kg (0.22 lb) |
| Gross Weight | 0.2 kg (0.44 lb) |
| Installation | Plane mount, wall mount |
| Casing Material | PC + ABS |
| Protection | IPX5 |
| Certifications | CE, FCC |
| Network & Storage — Remote Update | Cloud update |
|---|---|
| Network & Storage — Carrier Frequency | 433.1 MHz–434.6 MHz |
| Network & Storage — Communication Mechanism | Two-way |
| Network & Storage — Communication Distance | Up to 800 m (2624.67 ft) in an open space |
| Network & Storage — Encryption Mode | AES128 |
| Network & Storage — Frequency Hopping | Yes |
| Event & Alarm — Sensor | Water leak detector |
| Event & Alarm — Sensitivity | Adjustable |
| Event & Alarm — Low Battery Detection | Yes |
| Event & Alarm — Tamper | No |
| Interface — Indicator Light | 1 for multiple statuses (pairing, power status, and alarm) |
| Interface — Button | Power switch button |
| General & Environment — Power Supply | CR123A × 1 |
| General & Environment — Battery Life | 3 years when triggered once a day. |
| General & Environment — Power Consumption | Max 144 mW |
| General & Environment — Operating Current | 28.5 uA |
| General & Environment — Alarm Current | 5.8 mA |
| General & Environment — Operating Temperature | Indoor: –10 °C to +55 °C (+14 °F to +131 °F) |
| General & Environment — Operating Humidity | 10%–90% (RH) |
| General & Environment — Storage Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| General & Environment — Storage Humidity | 10%–90% (RH) |
| General & Environment — Product Dimensions | 84.7 mm × 84.7 mm × 32.5 mm (3.33" × 3.33" × 1.28") |
| General & Environment — Packaging Dimensions | 135.0 mm × 98.0 mm × 56.0 mm (5.32" × 3.86" × 2.20") |
| General & Environment — Net Weight | 0.1 kg (0.22 lb) |
| General & Environment — Gross Weight | 0.2 kg (0.44 lb) |
| General & Environment — Installation | Plane mount, wall mount |
| General & Environment — Casing Material | PC + ABS |
| General & Environment — Protection | IPX5 |
| General & Environment — Certifications | CE, FCC |
04Why choose this
Built for the way you actually use the DHI-ARD912-W2(D)
Tune the trigger depth
The (D) adjustable-height probe lets you set how much water it takes to alarm, keeping nuisance triggers down.
No wiring, easy to place
It mounts flat or sits on the floor and runs on a battery, so it goes wherever the risk is.
More than a leak sensor
Ambient temperature reporting and an overheat alarm add a second layer of property protection.
05Where it fits
Right at home in these scenarios
Laundry and kitchen
Place it by a washing machine, dishwasher or under a sink where hoses and seals fail most often.
Hot-water and plant rooms
Watch a hot-water unit or pipe run, with the overheat alarm as a bonus in a warm space.
Bathrooms and basements
Catch overflow or seepage at the low point before it spreads through a floor.
Holiday homes and rentals
Get an early app alert about a leak at a property you are not living in day to day.
06Setup
Installation & setup
-
01
What's in the box
One DHI-ARD912-W2(D) water-leak detector with adjustable probe, a CR123A battery and screw mounting. A Dahua AirShield hub is required and not included.
-
02
Installation requirements
Sit it flat on the floor at the lowest point near the risk, set the probe height for the sensitivity you want, and enrol it to your AirShield hub in the DMSS app. Pour a little water to confirm it alarms and the signal to the hub is good before relying on it.
08Questions
Frequently asked about the DHI-ARD912-W2(D)
Q.01
Where should I put the ARD912-W2(D)?
On the floor at the lowest point near anything that can leak — under a sink, beside a washing machine, dishwasher or hot-water unit, or along a pipe run. Water flows to the low spot, so placing the probe there gives you the earliest warning.
Q.02
What does the adjustable probe on the (D) version do?
Its probe height sets how much water it takes to alarm. Raise the probe with the screw and a deeper pool is needed before it triggers, which suits a spot that gets the odd splash; lower it and it catches the first thin film for the earliest possible warning.
Q.03
Does it work on its own?
No. It is a detector for the Dahua AirShield system and needs an AirShield hub. The hub receives the leak alarm and notifies you; on its own the detector has nothing to report to.
Q.04
Will it false-alarm from a damp floor or humidity?
Set the probe height to suit the spot so normal damp does not trip it while a genuine pool does, and place it where water collects rather than where it is merely humid. The adjustable probe is exactly what keeps nuisance triggers down.
Q.05
Is it waterproof itself?
The casing is IPX5 water-resistant, so it shrugs off splashes and a wet floor. It is a surface leak detector, though, not a submersible probe, so it is meant to sit on the floor and detect water reaching it, not be immersed.
Q.06
Does it have a tamper alarm?
No. Unlike some other AirShield detectors, this water-leak model does not include a tamper switch. It does report low battery and uses an encrypted, frequency-hopping link with jamming detection for a secure connection to the hub.
Q.07
Does it do anything besides detect water?
Yes. It also reports the surrounding temperature and can raise an overheat alarm, which is handy near a hot-water unit or in a plant room as an extra layer of property protection.
Q.08
Is this genuine Australian Dahua stock?
Yes. It is supplied as genuine Australian Dahua stock with local 3-year warranty and support, matching the AirShield hubs and peripherals sold here.
Buying from Smarket
Is your Hikvision, Dahua, HiLook and TP-Link VIGI stock genuine Australian stock?
Yes, 100%. Every Hikvision, Dahua, HiLook and TP-Link VIGI product we sell is a genuine Australian-market model sourced through Australian supply chains — never grey imports. That means factory-sealed units, Australian-region firmware that works with the official apps out of the box, and a full 3-year local warranty.
How long does delivery take?
Metro delivery usually takes 2–4 business days after dispatch, and regional areas may take longer. You'll receive a tracking number by email as soon as your order leaves the warehouse.
How much is shipping?
Standard shipping is free on all orders over $300 AUD, Australia-wide. Orders under $300 ship at a flat rate of $25, calculated at checkout. Tracking is included on every order.
What warranty do you offer?
All cameras, NVRs and DVRs come with a 3-year back-to-base manufacturer warranty covering defects in materials and workmanship, in addition to your rights under Australian Consumer Law. Hard drives and accessories are covered as set out in our Warranty Policy.
What is your return policy?
You have 30 days from the day you receive your order to request a change-of-mind return. Items must be unopened, factory-sealed and in resalable condition. A 15% restocking fee applies and return postage is at your cost. Faulty or incorrectly supplied items are different: we cover the return shipping and refund or replace at no charge. Read the full Return & Refund Policy.
Do you offer installation?
We can connect you with licensed installers in Sydney and Melbourne. Installation typically starts from around $200 per camera depending on cable runs and site conditions. Email sales@smarket.com.au with your address and camera count for a quote.
10Bundles
Recommended packages
Pair it with an AirShield hub (required)
The detector needs a hub to work — build your system on the DHI-ARC3800H-FW2 Alarm Hub 2, or the smaller DHI-ARC3000H-FW2 hub.
Add intrusion detection
Round out property protection with a ARD1233-W2 PIR detector and a ARD512-W2 glass-break detector.
Switch off on a leak
Pair it with an ARM7011-W2 wireless relay to switch a valve or shut-off circuit when a leak is detected (licensed wiring for any mains side).
Want a ready-made system?
Start from a bundled AirShield starter kit and add leak detection where it matters.