Products

The Dahua DHI-ARD1731-W2 is an indoor wireless PIR motion detector with a built-in camera, part of the Dahua AirShield wireless alarm range. When it detects movement it captures and sends a burst of HD snapshots to your Dahua alarm hub and phone, so you can visually confirm whether an alarm is a real intruder or a false trigger before you act.

Key points
- Indoor PIR detector with built-in 2MP camera (snapshots up to 1600 × 1200)
- Sends up to 6 HD images in about 10 seconds for visual alarm verification
- 12 m detection range, 88° horizontal coverage; pet immunity up to 18 kg
- Two-way encrypted wireless (AES128) with frequency hopping; tamper alarm
- Battery powered (3 × CR123A), about 4 years typical life
- Requires a Dahua AirShield wireless alarm hub (sold separately)

The Dahua DHI-ARD323-W2(S) is a wireless magnetic door and window detector for the Dahua AirShield alarm system. A sensor and a separate magnet sit on the door (or window) and its frame; when the door is opened while the system is armed, the magnet moves away from the sensor and the alarm is triggered. You can see the live open or closed state of every door and window in the DMSS app. It links to the hub over an encrypted two-way RF connection and runs on a battery. An AirShield hub is required and sold separately.

Key points
- Magnetic reed contact for doors and windows; triggers on opening when armed
- Real-time open/closed status of each door and window in the DMSS app
- Encrypted two-way RF link with frequency hopping; signal-strength check
- Tamper alarm, ambient temperature monitoring and low-battery warning
- Slim design for discreet mounting; magnet gap up to about 40 mm
- CR123A battery, around 3 years; indoor; requires an AirShield hub

The Dahua DHI-ARD324-W2(S) is a Door Detector Plus for the Dahua AirShield alarm system. As well as sensing when a door or window is opened, it detects shock and tilt, so it catches someone forcing or lifting a door, not just opening it. It has a wired input for a third-party contact and even monitors temperature. It links to your AirShield hub over an encrypted two-way wireless connection and runs on a long-life battery, so there is no wiring to the hub. An AirShield hub is required and sold separately.

Key points
- Three sensors in one: open/close, shock, and tilt up to 25°
- Reed switch plus a triaxial accelerometer for accurate detection
- One wired alarm input for a third-party contact (NO/NC/impulse)
- Built-in temperature monitoring (-15 C to +65 C)
- Encrypted two-way wireless (AES128, frequency hopping), up to 1,000 m
- CR123A battery with up to around 3 years of life; tamper alarm
- Indoor use on non-metal doors; requires a Dahua AirShield hub

The Dahua DHI-ARD512-W2 is a wireless glass-break detector for the Dahua AirShield alarm system. It listens for the specific sound of breaking glass within about 9 metres and raises an alarm before an intruder is through the window, covering tempered, double-glazed, laminated, wired, plate and float glass. It links to your AirShield hub over an encrypted 868 MHz two-way connection and runs on a battery, so there is no wiring to run. An AirShield hub is required and sold separately.

Key points
- Acoustic glass-break detection up to 9 m, for most common glass types
- Dual-frequency listening with algorithms to cut false alarms
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 1,600 m in open space to the hub
- Two wired alarm inputs to add third-party detectors
- CR123A battery with around 3 years of life; tamper alarm; indoor use

The Dahua DHI-ARD821-W2 is a wireless panic button for the Dahua AirShield alarm system. One press raises an immediate emergency alarm — useful for intrusion, fire, a medical scare or any moment you need help fast — and the alert goes to your AirShield hub and your phone. It is IP54 rated, runs on a coin cell and can be wall-mounted or carried, talking to the hub over an encrypted 868 MHz two-way link. An AirShield hub is required and sold separately.

Key points
- One-touch panic / SOS button raises an immediate emergency alarm
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 1,200 m in open space to the hub
- IP54 rated; multi-status LED with battery level in the app
- Accidental-press prevention to avoid false alerts
- CR2032 battery, around 3 years; wall-mount or portable; needs an AirShield hub

The Dahua DHI-ARD822-W2 is a dual-button wireless panic button for the Dahua AirShield alarm system. It needs both buttons pressed together to raise an alarm, which makes accidental activation far less likely — ideal for busy counters, schools or anywhere a single button could be knocked. The alert goes to your AirShield hub and your phone. It is IP54 rated, battery powered, and links to the hub over an encrypted 868 MHz two-way connection. An AirShield hub is required and sold separately.

Key points
- Two buttons pressed together raise the alarm — strong false-alarm prevention
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 1,200 m in open space to the hub
- IP54 rated; multi-status LED with battery level in the app
- CR2032 battery, around 3 years; wall-mount or portable
- Requires a Dahua AirShield hub

The Dahua DHI-ARD912-W2 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 sensor, so you catch a leak before it does real damage. Sensitivity is adjustable to suit the spot, the casing is IPX5 water-resistant, and it links to your AirShield hub over an encrypted 868 MHz two-way connection. An AirShield hub is required and sold separately.

Key points
- Alarms as soon as water reaches the sensor
- Adjustable sensitivity to suit the location
- IPX5 water-resistant casing; no wiring, easy to place
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 1,200 m in open space to the hub
- Temperature display and overheat alarm; CR123A battery, around 3 years

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