Dahua DHI-ARM310-W2 Wireless Input Expander
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Vendor:
Dahua
Dahua DHI-ARM310-W2 Wireless Input Expander
SKU: DHI-ARM310-W2
Description
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
- CR123A battery, around 4 years (NO input) or 2 years (NC/pulse)
- Indoor, bracket mount; requires a Dahua AirShield hub
Regular price
$36.83 AUD
Sale price
$36.83 AUD
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Dahua DHI-ARM310-W2 Wireless Input Expander
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§ 01Overview
What the DHI-ARM310-W2 is
The Dahua DHI-ARM310-W2 is the bridge between a wired detector and a wireless Dahua AirShield alarm.
It has one wired input that accepts a normally-open or normally-closed dry contact, and it passes that detector's state to the hub over the AirShield radio link.
That lets you keep a sensor that only exists as a wired device — a specialist detector, a roller-door contact, an existing hard-wired PIR — and still run a tidy wireless system.
It carries more than a simple open/closed signal.
The input can be reported as one of six alarm types — intrusion, medical, fire, emergency, gas or tamper — so the hub treats it correctly, and the expander adds signal-strength detection, ambient temperature monitoring, a tamper alarm and a low-battery warning.
The link to the hub is two-way with frequency hopping and AES128 encryption, and it is set up and managed in the DMSS app like the rest of the system.
A couple of honest notes.
It handles one wired input, not several, so a busy multi-zone wired job needs more than one.
It is an indoor accessory and, like every AirShield device, it needs a hub to work — confirm the expander's RF band matches your AirShield hub when you order.
A single CR123A cell runs it for around four years on a normally-open input (about two years on a normally-closed or pulse input).
It is genuine Australian Dahua stock with local 3-year warranty and support.
§ 02Engineering
DHI-ARM310-W2 specifications
- Wireless input expander for the Dahua AirShield alarm system
- One wired alarm input, normally-open or normally-closed dry contact (NO by default)
- Reports six alarm types: intrusion, medical, fire, emergency, gas and tamper
- Two-way RF communication with frequency hopping and AES128 encryption
- Signal-strength detection, tamper alarm and low-battery warning; cloud update
- Ambient temperature monitoring (-15 to +65 C, +/-1 C)
- CR123A battery: around 4 years on a NO input, around 2 years on NC or pulse
- Compact bracket-mount module, indoor (-10 to +55 C); requires an AirShield hub
- One wired alarm input, normally-open or normally-closed dry contact (NO by default)
- Reports six alarm types: intrusion, medical, fire, emergency, gas and tamper
- Two-way RF communication with frequency hopping and AES128 encryption
- Signal-strength detection, tamper alarm and low-battery warning; cloud update
- Ambient temperature monitoring (-15 to +65 C, +/-1 C)
- CR123A battery: around 4 years on a NO input, around 2 years on NC or pulse
- Compact bracket-mount module, indoor (-10 to +55 C); requires an AirShield hub
§ 03Full datasheet
Detailed specifications
Camera & Image
| Feature | Detail |
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Lens & Distance
| Feature | Detail |
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Night Vision
| Feature | Detail |
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Video
| Feature | Detail |
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Audio
| Feature | Detail |
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AI & Deep Learning
| Feature | Detail |
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Network & Storage
| Feature | Detail |
|---|---|
| Remote Upgrade | Cloud update |
| Carrier Frequency | 433.1 MHz–434.6 MHz |
| Communication Distance | Up to 1,000 m (3,280.84 ft) in an open space |
| Communication Mechanism | Two-way |
| Frequency Hopping | Yes |
| Encryption Mode | AES128 |
Event & Alarm
| Feature | Detail |
|---|---|
| Tampering Alarm | Yes |
| Low Battery Alarm | Yes |
| Test Mode | Yes |
| Search | Signal strength detection |
Interface
| Feature | Detail |
|---|---|
| Indicator Light | 1 × green alarm indicator |
| Button | 1 × power button |
| Protection Zone | 1-channel dry contact input |
General & Environment
| Feature | Detail |
|---|---|
| Power Supply Mode | CR123A battery |
| Battery Life | 4 years (The external input type is NO); 2 years (The external input type is NC or Pulse) |
| Power Consumption | Max. 70 mW |
| Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) (indoor) |
| Operating Humidity | 10%–90% (RH) |
| Measurement Range (Temperature) | –15 °C to +65 °C (+5 °F to +149 °F) (indoor) |
| Measurement Precision | ±1 °C (±1.8 °F) |
| Temperature Resolution | 1 °C (33.8 °F) |
| Dimensions | 100.2mm × 20.8mm × 20.3mm (3.94" × 0.82" ×0.80") |
| Package Dimensions | 135.0 mm × 98.5 mm × 27.8mm (5.31" × 3.88" × 1.09") |
| Installation Mode | Bracket mount |
| Net Weight | 70 g (0.15 lb) |
| Gross Weight | 115 g (0.25 lb) |
| Casing Material | PC + ABS |
| Certification | CE |
§ 04Why choose this
Built for the way you actually use the DHI-ARM310-W2
Correct alarm handling
Reports the input as one of six alarm types so the hub responds the right way for fire, intrusion, gas and more.
Set and forget
Around four years on a CR123A cell with a low-battery warning, a tamper alarm and signal-strength checking.
Secure two-way link
Frequency hopping and AES128 encryption over a two-way radio link keep the converted signal reliable and protected.
§ 05Where it fits
Right at home in these scenarios
Convert an existing wired PIR
Reuse a hard-wired motion detector by reporting it wirelessly to the AirShield hub instead of replacing it.
Roller and garage door contacts
Bring a wired roller-door or garage contact onto the system where a wireless sensor will not fit.
Specialist wired sensors
Add a wired smoke, gas or flood device that has no wireless version by converting its output to AirShield.
Mixed wired and wireless sites
Fold the odd wired zone into an otherwise wireless install without changing the panel.
§ 06Setup
Installation & setup
What's in the box
One DHI-ARM310-W2 wireless input expander with a CR123A battery and mounting bracket. The wired detector and a Dahua AirShield hub are required and not included.
Installation requirements
Wire your detector's NO or NC contact into the expander's input, mount it indoors near the detector, and enrol it to your AirShield hub in the DMSS app. Set the alarm type to suit the sensor, then trigger the wired detector to confirm it reports to the hub and the signal is good before relying on it.
§ 07Questions
Frequently asked about the DHI-ARM310-W2
Q.01
What does the ARM310-W2 actually do?
It lets a single wired detector report to a Dahua AirShield hub wirelessly. You wire the detector's NO or NC contact into the expander, and the expander sends that detector's alarm to the hub over the AirShield radio link, so a wired sensor can join a wireless system without cabling back to a panel.
Q.02
Does it work on its own?
No. It is an accessory for the Dahua AirShield system and needs an AirShield hub. The expander only forwards a wired input to the hub, so without a hub there is nothing for it to report to.
Q.03
How many detectors can I connect to one?
One. It has a single wired input, so it brings one wired detector onto the system. If you have several wired sensors to convert, you use an expander for each, or look at a hybrid panel that takes wired zones directly.
Q.04
Which alarm type should I set it to?
You can report the input as intrusion, medical, fire, emergency, gas or tamper, so the hub responds the right way for the sensor you have connected — for example fire for a wired smoke detector, or intrusion for a wired PIR. You choose the type in the app.
Q.05
Will it match my AirShield hub?
It pairs with the Dahua AirShield hub over the same secure two-way link as the other peripherals. RF bands are region specific, so confirm the expander's band matches your hub when you order.
Q.06
How long does the battery last?
It runs on a single CR123A cell for around four years when the wired input is normally-open, or about two years on a normally-closed or pulse input, with a low-battery warning before it runs out. CR123A is a standard cell you can replace yourself.
Q.07
Is it for indoor or outdoor use?
It is an indoor device rated for -10 to +55 C. Mount it indoors near the wired detector you are converting; for an outdoor sensor, keep the expander itself in a sheltered indoor spot and run the detector's wiring to it.
Q.08
Is this genuine Australian Dahua stock?
Yes. It is supplied as genuine Australian Dahua stock with local 3-year warranty and support, matching the AirShield hubs and peripherals sold here.
§ 09Bundles
Recommended packages
Pair it with an AirShield hub (required)
The expander needs a hub to work — build your system on the DHI-ARC3800H-FW2 Alarm Hub 2, or the smaller DHI-ARC3000H-FW2 hub.
Add wireless detection too
Mix in wireless detectors such as a ARD1233-W2 PIR detector or a ARD323-W2 door contact alongside your converted wired zone.
Arm and sound the system
Add an ARK30T-W2 keypad for arming and an ARA12-W2 indoor siren so alarms are heard.
Want a ready-made system?
Start from a bundled AirShield starter kit and add this expander to bring a wired sensor on board.