Dahua DHI-ARC3800H-FW2 Wireless Alarm Hub 2
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Dahua

Dahua DHI-ARC3800H-FW2 Wireless Alarm Hub 2

SKU: DHI-ARC3800H-FW2
Description

The Dahua DHI-ARC3800H-FW2 is the Alarm Hub 2, the brain of a Dahua AirShield wireless 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 and wired peripherals across 32 areas
- Triple connectivity: Ethernet (RJ45), Wi-Fi and 4G cellular (dual SIM) with multi-network redundancy
- Built-in 4,750 mAh battery for around 12 hours of backup during a power cut
- 868 MHz two-way radio to peripherals with AES128 encryption and frequency hopping
- Alarm video verification from up to 8 IP cameras; SMS and phone-call alerts to 12 numbers
- Self-monitor free in DMSS with no monthly fees, or link to a monitoring centre (SIA / SoftGuard)
- Arm by app, keypad, keyfob, card, SMS or schedule; wireless peripherals sold separately
$305.00 AUD $305.00 AUD
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inc GST + 3 Year Warranty & Support
Free shipping over AUD300

In stock
3-Year WarrantyOn all cameras
Free ShippingOn orders over $300
30-Day ReturnsUnopened items
Fast Delivery1–5 days Australia-wide

§ 01Overview

What the DHI-ARC3800H-FW2 is

The Dahua DHI-ARC3800H-FW2 Alarm Hub 2 is the control panel at the centre of a Dahua AirShield wireless alarm system. Every detector, siren, keypad and keyfob talks to the hub, and the hub decides when to raise an alarm, sounds the sirens, and pushes a notification to your phone through the free DMSS app. It scales well beyond a single home: it supports up to 150 peripherals across 32 areas, including up to 64 keyfobs, 8 keypads, 6 sirens, 64 detectors and PIR cameras, plus wired expanders, so it suits anything from a flat to a large house or small business.

Its strength is staying connected. It links three ways — wired Ethernet, Wi-Fi, and 4G cellular with dual SIM — and runs them with multi-network redundancy, so if the broadband drops it can keep reporting over mobile data, and a built-in 4,750 mAh rechargeable battery keeps the system alive for around 12 hours through a power cut. To its wireless peripherals it uses 868 MHz two-way radio with AES128 encryption and frequency hopping for a confirmed, interference-resistant link. It can also pull in images from up to 8 IP cameras for alarm video verification, so you see what triggered an alarm rather than guessing.

It is built for flexible control and monitoring with no lock-in. Arm and disarm by app, keypad, keyfob, card, SMS or schedule; alerts go out as app push, SMS and phone calls to up to 12 numbers; and you can self-monitor free in DMSS with no monthly fees or link the hub to a professional monitoring centre using the SIA and SoftGuard protocols. Two honest notes: the hub is the controller, not a complete alarm — you add the detectors, sirens and a way to arm it — and the 4G option needs a SIM with an active data plan.

§ 02Engineering

DHI-ARC3800H-FW2 specifications

- Central control hub for the Dahua AirShield wireless alarm system
- Manages up to 150 peripherals across 32 areas: up to 64 keyfobs, 8 keypads, 6 sirens, 6 repeaters, 64 PIR cameras and detectors, plus 16 multi I/O and 16 RS-485 expanders
- Triple connectivity: Ethernet (RJ45 10/100), Wi-Fi (802.11b/g/n 2.4 GHz) and 4G/3G/2G cellular (dual SIM) with multi-network redundancy
- Built-in 4,750 mAh rechargeable lithium battery, around 12 hours of backup in a power cut
- 433 MHz two-way radio to peripherals with AES128 encryption and frequency hopping
- Alarm video verification from up to 8 onboard IP cameras; one audio channel and voice broadcast
- App push, SMS and phone-call alerts to up to 12 numbers; logs up to 5,000 events
- Arm/disarm by app, keypad, keyfob, card, SMS or schedule; self-monitor free in DMSS or link to a monitoring centre (SIA / SoftGuard); 3-year warranty

§ 04Why choose this

Built for the way you actually use the DHI-ARC3800H-FW2

Stays connected three ways

Ethernet, Wi-Fi and 4G cellular with multi-network redundancy mean the hub keeps reporting even if your broadband drops, so alerts still get through.

Keeps working in a blackout

A built-in 4,750 mAh battery runs the system for around 12 hours during a power cut, so a simple outage does not leave you unprotected.

Room to grow

Up to 150 peripherals across 32 areas covers everything from a flat to a large house or small business, all on one hub.

Own it, no monthly fees

Self-monitor free in the DMSS app, or link to a monitoring centre if you want — your choice, with no forced subscription.

§ 05Where it fits

Right at home in these scenarios

Whole-home wireless alarm

Run detectors, sirens and keypads across a house on one hub, armed from the app, a keypad or a keyfob.

Small business and shopfront

Cover entries, floors and a back room with up to 150 devices and 32 areas, with cellular backup for reliable reporting.

Properties with poor internet

Use 4G as a backup or primary path so the alarm still reports where fixed broadband is unreliable.

Video-verified alarms

Link IP cameras and PIR cameras so a trigger comes with a picture, cutting false call-outs and guesswork.

§ 06Setup

Installation & setup

01

What's in the box

One DHI-ARC3800H-FW2 Alarm Hub 2 with built-in rechargeable battery and mounting hardware. Wireless peripherals (detectors, sirens, keypads, keyfobs), a SIM for the 4G option and any IP cameras are not included.

02

Installation requirements

Place the hub centrally for good wireless coverage, power it from a 100-240 V outlet, and connect it to your network by Ethernet or Wi-Fi (add a data SIM if you want 4G backup). Add it to the DMSS app, then enrol your detectors, sirens and arming devices and assign them to areas. Set entry and exit delays and test each device's signal before arming. Professional installation is recommended for monitored systems.

§ 07Questions

Frequently asked about the DHI-ARC3800H-FW2

Q.01

What exactly is the ARC3800H-FW2?
It is the Alarm Hub 2, the central controller of a Dahua AirShield wireless alarm system. It connects your wireless detectors, sirens, keypads and keyfobs, decides when to raise an alarm and alerts you in the DMSS app. It is the part you build the system around; the detectors, sirens and arming devices are separate and added to suit your property.
Q.02

Do I need a SIM card or a monthly subscription?
No subscription is required. You can self-monitor the system free through the DMSS app over your home Ethernet or Wi-Fi, with push, SMS and phone-call alerts. The 4G cellular option is a backup path and only needs a SIM with an active data plan if you want mobile-network reporting as well; you can also link the hub to a professional monitoring centre if you prefer.
Q.03

How many devices can it support?
Up to 150 peripherals across 32 areas, including up to 64 keyfobs, 8 keypads, 6 sirens, 6 repeaters, 64 PIR cameras and detectors, plus wired multi-I/O and RS-485 expanders. That is enough for a single home through to a large house or small business.
Q.04

What happens if the power or internet goes out?
A built-in 4,750 mAh rechargeable battery keeps the hub running for around 12 hours during a power cut. For internet, it can fall back between Ethernet, Wi-Fi and 4G cellular with multi-network redundancy, so it keeps reporting if your broadband drops.
Q.05

How do I arm and disarm it?
Several ways: the DMSS app, a wireless keypad by PIN or card, a keyfob, SMS, or an automatic schedule. Most households use the app and a keypad or keyfob day to day.
Q.06

Can it show me what set the alarm off?
Yes. It supports alarm video verification by linking up to 8 IP cameras and can receive images from AirShield PIR cameras, so when an alarm triggers you get a picture of what caused it in the app rather than just a notification.
Q.07

Is the wireless link to the detectors secure?
Yes. The hub uses 868 MHz two-way radio with AES128 encryption and frequency hopping. Two-way communication confirms each device is reporting, and the encryption and hopping make the signal resistant to interference and jamming.
Q.08

Is this a complete alarm system?
No, and that is by design. The hub is the controller; you add the detectors, sirens and a way to arm it to build a system that fits your home or business. If you would prefer a ready-made bundle, an AirShield starter kit pairs this hub with detectors and arming devices out of the box.
Q.09

Is this genuine Australian Dahua stock?
Yes. This is the 868 MHz FW2 AirShield Alarm Hub 2, supplied as genuine Australian Dahua stock with local 3-year warranty and support, and it works with the AirShield peripherals sold here.

§ 08In motion

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§ 09Bundles

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