Dahua DHI-ARM7011-W2 Wireless Relay
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Dahua

Dahua DHI-ARM7011-W2 Wireless Relay

SKU: DHI-ARM7011-W2
Description

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
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Bundle total: $46.87

§ 01Overview

What the DHI-ARM7011-W2 is

The Dahua DHI-ARM7011-W2 lets a Dahua AirShield alarm switch other low-voltage equipment. It provides a single relay with an isolated dry contact rated 0-36 VDC at up to 5 A, and because the contact is electrically isolated from the relay's own power it acts as a clean switch you can wire into another circuit. You control it from the DMSS app by hand, on a schedule, as part of a scene, or automatically when an alarm event occurs.

That makes it the link between the alarm and the things around it: switch a light on when an alarm trips, pulse a gate or garage-door trigger input, enable or disable an auxiliary siren or strobe, or bring a small piece of automation under the same system. It supports momentary and latching operation, runs from a 7-24 V DC supply, and includes overheat and overvoltage protection plus a tamper input. The radio link to the hub is two-way with AES128 encryption and frequency hopping at up to 800 m in open space.

Two important notes. The relay is a low-voltage, isolated signalling contact — it is not a mains switch. To control 240 V mains equipment you must wire it to drive a separately powered contactor or interface relay, and that work should be done by a licensed electrician. And like every AirShield device it needs a hub to function; confirm the relay's RF band matches your AirShield hub when ordering. It is genuine Australian Dahua stock with local 3-year warranty and support.

§ 02Engineering

DHI-ARM7011-W2 specifications

- Wireless relay module for the Dahua AirShield alarm system
- One isolated dry-contact relay output: 0-36 VDC, maximum 5 A (NO/NC)
- Trigger by app, schedule, scene or alarm-event linkage; momentary or latching
- Two-way radio with AES128 encryption and frequency hopping; range up to 900 m
- Overheat protection and voltage detection; one external tamper input
- Powered from a 7-24 V DC supply; jamming detection; cloud update
- Compact 39 x 33 x 19 mm wall-mount module, indoor (-10 to +55 C); CE, FCC
- Requires a Dahua AirShield hub; isolated low-voltage contact (not a mains switch)

§ 03Full datasheet

Detailed specifications

Network & Storage

Network & Storage — Dahua DHI-ARM7011-W2 Wireless Relay
FeatureDetail
Remote Update Cloud update
Carrier Frequency 433.1 MHz–434.6 MHz
Communication Mechanism Two-way
Communication Distance 800 m (2624.67 ft) in open areas
Encryption Mode AES128
Frequency Hopping Yes

§ 04Why choose this

Built for the way you actually use the DHI-ARM7011-W2

Bridges alarm and automation

An isolated dry contact lets the alarm switch lights, gates, garage triggers or auxiliary warning devices on the same system.

Flexible control

Trigger it by hand in the app, on a schedule, in a scene, or automatically on an alarm event, with momentary or latching action.

Protected and isolated

The contact is electrically isolated from the module's power, with overheat and overvoltage protection for safe, reliable switching.

Secure two-way link

AES128 encryption and frequency hopping over a two-way radio link confirm each command and resist interference.

§ 05Where it fits

Right at home in these scenarios

Gate or garage trigger

Pulse the dry contact into a gate motor or garage-door trigger input to open from the alarm app or a keyfob action.

Switch a light on alarm

Turn on a low-voltage light or indicator automatically when an alarm trips, adding a visible response.

Auxiliary siren or strobe

Enable an extra warning device as part of an alarm sequence.

Small automation tasks

Bring a low-voltage device under the alarm system for scheduled or scene-based switching.

§ 06Setup

Installation & setup

01

What's in the box

One DHI-ARM7011-W2 wireless relay module with mounting hardware. A Dahua AirShield hub, the 7-24 V DC supply and any contactor for mains switching are not included.

02

Installation requirements

Wire the module to a 7-24 V DC supply and connect the dry contact to the low-voltage device or trigger input you want to switch. For any mains-side switching, have a licensed electrician fit a separately powered contactor. Enrol the relay to your AirShield hub in DMSS, set momentary or latching action, and test the switching before relying on it.

§ 07Questions

Frequently asked about the DHI-ARM7011-W2

Q.01

What does the ARM7011-W2 actually do?
It gives your AirShield alarm a switched, electrically isolated dry contact rated 0-36 VDC at up to 5 A. You use that contact to switch or trigger another low-voltage device from the app, a schedule, a scene, or automatically when an alarm event happens.
Q.02

Does it work on its own?
No. It is an accessory for the Dahua AirShield system and needs an AirShield hub. The hub tells it when to switch, so on its own it has nothing controlling it.
Q.03

Can it switch 240 V mains, like a light circuit?
Not directly. Its contact is a low-voltage, isolated dry contact rated to 36 VDC, designed for signalling. To control 240 V mains you wire it to drive a separately powered contactor or interface relay, and that work must be carried out by a licensed electrician.
Q.04

What can I use it to control?
Common uses are pulsing a gate or garage-door trigger input, switching a low-voltage light or indicator, enabling an auxiliary siren or strobe on alarm, or bringing a small automation device under the alarm system.
Q.05

Does it support momentary and latching modes?
Yes. You can set it to pulse briefly (momentary), which suits gate and garage triggers, or to hold its state until switched again (latching), which suits turning something on and leaving it on.
Q.06

What powers the relay itself?
It runs from a 7-24 V DC supply that you provide. That power feeds the module; the relay contact it switches is kept electrically isolated from it.
Q.07

How far can it be from the hub, and is the link secure?
Up to 800 metres in open space, over a two-way radio link with AES128 encryption and frequency hopping. Two-way communication confirms the command and the encryption and hopping resist interference and jamming.
Q.08

Will it match my AirShield hub?
It pairs with the Dahua AirShield hub over the same secure link as the other peripherals. RF bands are region specific, so confirm the relay band matches your hub when you order; it carries genuine Australian Dahua 3-year warranty and support.

§ 09Bundles

Recommended packages

04

Want a ready-made system?

Start from a bundled AirShield starter kit and add this relay for switching and automation.