Dahua Alarm

The Dahua DHI-ARA43-W2 is a wireless alarm repeater for the Dahua AirShield system. It sits between the hub and your detectors and sirens, forwarding their signals to extend wireless coverage and remove blind spots in larger or awkward buildings. It supports up to 128 peripherals at up to 1,600 m in open space, switches automatically between dual antennas for a reliable link, and has a built-in battery that keeps it working for over 35 hours through a power cut. An AirShield hub is required and sold separately.

Key points
- Extends the hub-to-peripheral range up to 1,600 m in open space
- Provides a second path for up to 128 wireless peripherals
- Automatic dual-antenna switching to reduce signal blind spots
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Built-in lithium battery, over 35 hours of backup in a power cut
- Tamper alarm and external-power loss detection; needs an AirShield hub

The Dahua DHI-ARA24-W2 is a four-button wireless keyfob for the Dahua AirShield alarm system. It lets you arm and disarm your alarm from your pocket and includes a dedicated SOS button to raise an emergency alert. It talks to your AirShield hub over an encrypted 868 MHz two-way link, so the keyfob confirms each command rather than firing blind. An AirShield hub is required and sold separately.

Key points
- Four buttons: Home arm, Away arm, Disarm and SOS emergency alarm
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 900 m in open space to the hub
- Two-colour status LED confirms normal or fault feedback
- CR2032 battery with around 3 years of life and low-battery warning
- Compact 60 mm keyring fob; works only with a Dahua AirShield hub

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

The Dahua DHI-ARA12-W2 is a wireless indoor siren for the Dahua AirShield alarm system. When the system is triggered it sounds a loud alarm of up to 84 dB to startle an intruder and alert anyone inside, with three volume levels so you can match it to the room. It links to your AirShield hub over an encrypted 868 MHz two-way connection and runs on batteries, so there is no wiring to run. An AirShield hub is required and sold separately.

Key points
- Loud indoor alarm up to 84 dB at 1 m, with three selectable volume levels
- 868 MHz two-way radio with AES128 encryption and frequency hopping
- Range up to 1,000 m in open space to the hub
- Tamper alarm, test mode and low-battery warning built in
- Runs on 2 x CR123A batteries, around 2.5 years of life
- Bracket-mounted; indoor use; requires a Dahua AirShield hub

The Dahua DH-ARD2251E-W2 is an outdoor wireless detector for the Dahua AirShield alarm system that combines three detection technologies — PIR, microwave and an optical verification camera — to catch a real intruder outside while shrugging off the things that fool ordinary outdoor sensors. It detects movement up to 15 metres, has pet immunity to around 40 kg, supports anti-masking, and captures a short verification image so you can confirm an outdoor alarm before you act. It is IP66 rated and links to the hub over an encrypted 868 MHz two-way connection. It works with the ARC3800H AirShield Hub 2 only, which is sold separately.

Key points
- Triple-tech detection: PIR + microwave + optical, with intelligent filtering
- Outdoor range up to 15 m at 90° (1 m mounting height); 3 sensitivity levels
- Pet immunity to about 40 kg / under 80 cm; anti-masking and tamper
- Built-in camera for alarm video verification (IR up to 15 m, 110° view)
- 868 MHz two-way radio with AES128 encryption and frequency hopping; up to 1,600 m
- IP66, -25 to +60 C, 4x CR123A; works with the ARC3800H AirShield Hub 2 only

These Dahua Blue Mifare Tags are the proximity tags (part code DHI-ARK30T-W2-IC) for the Dahua ARK30T-W2 AirShield wireless keypad. Each tag is a contactless Mifare card that a user simply taps on the keypad to arm or disarm the alarm — no PIN to remember, and you can give each person their own tag. They are passive RFID tags with no battery, and they only work with the ARK30T-W2 keypad, which is sold separately.

Key points
- Blue Mifare proximity tags for the Dahua ARK30T-W2 AirShield keypad
- Tap to arm and disarm — no PIN code needed
- Give each household member or staffer their own tag
- Contactless Mifare RFID; passive, no battery
- Easily enrolled and removed in the DMSS app
- Requires the ARK30T-W2 keypad (and an AirShield hub)

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