Alarm

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-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-ARK30T-W2 is a wireless keypad for the Dahua AirShield alarm system. It lets people arm and disarm by entering a PIN or tapping an IC card by the door, with support for up to 32 users so you can give everyone their own code. It is fully wireless and links to your AirShield hub over an encrypted 868 MHz two-way connection, so there is no cabling to run. An AirShield hub is required and sold separately.

Key points
- Arm and disarm by PIN code or contactless IC card
- Supports up to 32 individual users
- Emergency alarm functions (panic, fire and medical) from the keypad
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 1,600 m in open space to the hub
- Four indicator lights for communication, arm/disarm, fault and alarm
- 4 x AA batteries with around 3 years of life; tamper alarm; indoor wall mount

Dahua AirShield wireless alarm starter kit built around the Hub 2, with Ethernet, Wi-Fi and 4G LTE reporting and DMSS app control, for self-monitored home and small-business security with no mandatory monthly fee.

• AirShield Hub 2 (ARC3800H-FW2) with Ethernet, Wi-Fi and 4G LTE, dual-SIM
• Kit includes hub, keyfob, door detector and PIR detector
• Expandable to up to 150 wireless peripherals
• Full control and notifications through the free DMSS app
• No mandatory monitoring contract; self-monitor or add a monitoring service
• AES128 encryption and frequency hopping to resist jamming
• Tamper and low-battery alarms; built-in backup battery in the hub

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-ARC3000H-FW2 is the wireless hub at the centre of a Dahua AirShield alarm system. It manages your wireless detectors, sirens, keypads and keyfobs, decides when to raise an alarm and notifies you through the free DMSS app. It connects three ways — Ethernet, Wi-Fi and 4G cellular — so it keeps reporting even if one network drops, and a built-in rechargeable battery keeps it running through a power cut. Wireless peripherals are required and sold separately.

Key points
- Central hub for the AirShield system; up to 150 wireless peripherals
- Supports up to 6 sirens, 64 keyfobs, 8 keypads, 8 PIR cameras and 4 repeaters
- Triple connectivity: Ethernet (RJ45), Wi-Fi 2.4G and 4G cellular (dual SIM)
- Built-in rechargeable battery for around 12 hours of backup in a power cut
- Encrypted two-way wireless to peripherals (AES128, frequency hopping)
- Alarm video verification with IP cameras; app push, SMS and phone-call alerts to up to 5 numbers
- Self-monitor free in DMSS with no monthly fees; wireless peripherals sold separately

The Dahua DHI-ARA13-W2 is a weatherproof wireless outdoor siren for the Dahua AirShield alarm system. It combines a high-output sounder of up to 110 dB with a bright flashing strobe, so a triggered alarm is both heard and seen from outside the property. Its IP65 housing stands up to dust and rain, 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
- High-output siren up to 110 dB at 1 m, plus a flashing strobe
- Multiple alarm tones (intrusion, fire, panic and more)
- IP65 weatherproof housing; outdoor use from -25 C to +60 C
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 1,600 m in open space to the hub
- Powered by 4 x CR123A batteries or 9-15 V DC; tamper alarm
- Requires a Dahua AirShield hub