Dahua Alarm

The Dahua DHI-ARM7012-W2 is a wireless WallSwitch for the Dahua AirShield alarm system. It lets you switch a mains appliance on or off remotely from the DMSS app, run it on a schedule or trigger it from an alarm event, and it monitors how much power that appliance is using. It handles loads up to 13 A at 100-240 VAC and links to your AirShield hub over an encrypted two-way wireless connection. An AirShield hub is required and sold separately.

Key points
- Remote on/off control of a 100-240 VAC appliance, up to 13 A
- Single relay output, switchable as normally-open or normally-closed
- Live energy monitoring: voltage, current and consumption in the DMSS app
- Overheat and overload protection built in
- Encrypted two-way wireless (AES128, frequency hopping) with jamming detection
- Range up to 1,200 m in open space to the hub
- Mains powered, indoor wall mount; requires a Dahua AirShield hub

The Dahua DHI-ARM7011-W2 is a wireless relay for the Dahua AirShield alarm system. It gives the system a switched, isolated dry contact (0-36 VDC, up to 5 A) that you can trigger from the app, on a schedule, in a scene, or automatically when an alarm event happens — handy for switching a light, a gate or garage trigger, or an extra warning device. It links to the hub over an encrypted two-way radio link and has overheat and overvoltage protection built in. An AirShield hub is required and sold separately.

Key points
- One isolated dry-contact relay output, 0-36 VDC, up to 5 A
- Trigger from the app, a schedule, a scene or an alarm event
- Encrypted two-way radio with AES128 and frequency hopping; range up to 800 m
- Overheat and overvoltage protection; one tamper input
- Powered from 7-24 V DC; compact wall mount
- Requires a Dahua AirShield hub

The Dahua DHI-ARM320-W2 is a wireless input expander for the Dahua AirShield alarm system. It lets you connect an existing third-party wired detector — a PIR, reed, smoke or panic device — and bring it into your wireless alarm, so when that detector triggers, the expander reports it to the hub over the air. It can even supply low-voltage power to the connected detector, and it runs for years on its own batteries. An AirShield hub is required and sold separately.

Key points
- Connects a third-party wired detector to the Dahua AirShield wireless system
- One alarm input plus a second input for the detector's tamper port
- Six alarm types selectable in the app: intrusion, medical, fire, emergency, gas, tamper
- Auxiliary 3.3 V output (up to 10 mA) to power the connected detector
- Encrypted two-way wireless (AES128, frequency hopping), up to 1,300 m
- Triaxial accelerometer for a device-moved alarm; tamper protection
- 4 x AA batteries for around 3 years of life; indoor; requires a Dahua AirShield hub

The Dahua DHI-ARM310-W2 is a wireless input expander for the Dahua AirShield alarm system. It takes a single wired detector — one that only comes in a hard-wired form, or an existing wired sensor you want to keep — and reports it to the hub wirelessly, so you can fold a wired device into an otherwise wireless system without running cable back to a panel. 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
- Converts one wired (NO/NC) detector input into an AirShield wireless zone
- Reports six alarm types: intrusion, medical, fire, emergency, gas and tamper
- Encrypted two-way RF link with frequency hopping; signal-strength check
- Ambient temperature monitoring and low-battery alarm
- 4 x AA batteries for around 3 years (NO input) or 2 years (NC/pulse)
- Indoor, bracket mount; requires a Dahua 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

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

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-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