Dahua DHI-ARA24-W2 Wireless Alarm Keyfob Remote
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Dahua

Dahua DHI-ARA24-W2 Wireless Alarm Keyfob Remote

SKU: DHI-ARA24-W2
Description

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
$30.00 AUD $30.00 AUD
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Bundle total: $30.00

§ 01Overview

What the DHI-ARA24-W2 is

The Dahua DHI-ARA24-W2 is a pocket-sized remote for the Dahua AirShield wireless alarm system. Its four buttons let you arm in Away mode when you leave, arm in Home mode to protect doors and perimeter while you stay in, disarm when you return, and press SOS to raise an immediate emergency alarm. A two-colour LED flashes back so you know the command was received.

It is not a one-way remote. The keyfob uses 868 MHz two-way communication with AES128 encryption and frequency hopping, so each press is confirmed by the hub and the link resists interference and cloning, with a range of up to 900 m in open space. A single CR2032 coin cell runs it for around three years, and a low-battery warning lets you know well before it goes flat.

Worth knowing before you buy: the keyfob is an accessory, not a system on its own. It needs a Dahua AirShield hub to function, and you would normally pair it with detectors and a siren. It carries genuine Australian Dahua warranty and support, and the same system is managed from the free DMSS app on your phone.

§ 02Engineering

DHI-ARA24-W2 specifications

- Four-button wireless keyfob for the Dahua AirShield alarm system: Home arm, Away arm, Disarm, SOS
- One-touch SOS button raises an immediate emergency alarm
- 868 MHz two-way communication with AES128 encryption and frequency hopping
- Range up to 900 m in open space to the AirShield hub
- Two-colour status LED (green normal, red fault) confirms each command
- CR2032 battery, around 3 years of life, with low-battery warning
- Compact 60 x 39.5 x 15 mm fob, 20 g, indoor use (-10 to +55 C); EN 50131 Security Grade 2
- Requires a Dahua AirShield hub; genuine Australian stock with 3-year warranty

§ 03Full datasheet

Detailed specifications

Network & Storage

Network & Storage — Dahua DHI-ARA24-W2 Wireless Alarm Keyfob Remote
FeatureDetail
Carrier Frequency 868.0 MHz–868.6 MHz
Communication Distance Up to 900 m (2,952.76 ft) in an open space
Communication Mechanism Two-way
Encryption Mode AES128
Frequency Hopping Yes
Remote Upgrade Cloud update

§ 04Why choose this

Built for the way you actually use the DHI-ARA24-W2

Arm and disarm from your pocket

One press to arm when you leave and disarm when you get back, with no need to open an app or reach a keypad by the door.

SOS when it matters

A dedicated SOS button raises an immediate emergency alarm, useful for medical or personal-safety situations as well as intrusion.

Confirmed, secure signalling

868 MHz two-way radio with AES128 encryption and frequency hopping confirms each command and resists interference and cloning.

Years between battery changes

A CR2032 cell lasts around three years with a low-battery warning, so it is genuinely fit-and-forget.

§ 05Where it fits

Right at home in these scenarios

Daily arm and disarm

Keep one on the keyring to arm Away on the way out and disarm on the way back, the quickest way to use the system day to day.

Personal safety / SOS

Carry it for a one-touch emergency alarm at home, handy for elderly residents or anyone living alone.

A fob for each person

Give every family member or staff member their own keyfob, with up to 64 supported per hub.

Backup to the app

Use it when a phone is out of reach or out of charge, as a reliable physical control for the alarm.

§ 06Setup

Installation & setup

01

What's in the box

One DHI-ARA24-W2 keyfob with a CR2032 battery fitted. A Dahua AirShield hub is required and not included.

02

Setup

Enrol the keyfob to your AirShield hub through the DMSS app by following the add-peripheral steps and scanning or entering its code. Assign it to the person or area you want, then test each button to confirm a good two-way signal before relying on it.

§ 07Questions

Frequently asked about the DHI-ARA24-W2

Q.01

Does the ARA24-W2 keyfob work on its own?
No. It is a remote control for the Dahua AirShield alarm system and needs an AirShield hub to work. Once enrolled to a hub it arms, disarms and raises an SOS alarm wirelessly; without a hub it has nothing to talk to.
Q.02

What do the four buttons do?
Away arms the whole system when you leave, Home arms perimeter and door protection while you stay inside, Disarm turns the alarm off when you return, and SOS raises an immediate emergency alarm to the hub and your phone.
Q.03

How far does it reach the hub?
Up to 900 metres in open space. Indoors through walls the practical range is shorter, but it comfortably covers a typical home or small business where the keyfob and hub are in or near the same building.
Q.04

Is the signal secure, or can it be copied?
It uses 868 MHz two-way communication with AES128 encryption and frequency hopping. Two-way means the hub confirms each command, and the encryption and hopping make the signal very difficult to intercept or clone compared with a basic one-way remote.
Q.05

How long does the battery last and can I replace it?
It runs on a single CR2032 coin cell for around three years and gives a low-battery warning before it runs out. The battery is a standard, widely available type that you can replace yourself.
Q.06

How many keyfobs can I add to one system?
A Dahua AirShield hub supports up to 64 keyfobs, so every member of the household or staff can have their own remote, each identifiable in the system.
Q.07

Can I still use my phone to arm the system?
Yes. The keyfob is an extra, convenient way to arm and disarm. You can also control the same AirShield system from the free DMSS app on your phone, at home or away.
Q.08

Is this genuine Australian Dahua stock?
Yes. It is supplied as genuine Australian Dahua stock with local 3-year warranty and support, and it pairs with the 868 MHz AirShield hubs and peripherals sold here.

§ 09Bundles

Recommended packages

04

Want a ready-made system?

Start from a bundled AirShield starter kit and add this keyfob for extra remotes.