At a glance
- Battery Life
- 3 years
- Operating Temperature
- 10 °C to +55 °C (indoor)
- Carrier Frequency
- 433.1 MHz to 434.6 MHz
- Communication Distance
- Up to 500 m (1,640.42 ft) in an open space
- Power Supply
- CR2032 battery
Dahua ARA24-W2 Wireless Alarm Keyfob
₹2,310 Incl. GST
₹1,958 + 18% GST
At a glance
- Battery Life
- 3 years
- Operating Temperature
- 10 °C to +55 °C (indoor)
- Carrier Frequency
- 433.1 MHz to 434.6 MHz
- Communication Distance
- Up to 500 m (1,640.42 ft) in an open space
- Power Supply
- CR2032 battery
Key fob for arming the Dahua alarm when you leave and disarming it when you arrive, without a keypad or the app, with an SOS button for emergencies. Four buttons (Away, Home, Disarm, SOS), two-way confirmation LED, up to 500 m open-space range.
- WarrantyManufacturer warranty under Dahua's terms. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
The Dahua ARA24-W2 is a wireless keyfob for a Dahua 433 MHz alarm. It arms and disarms the system from a pocket or key ring, and its SOS button can trigger an emergency alarm. It suits family members, shop staff and office managers who set the alarm when leaving and disarm it on arrival without walking to a keypad or opening the app.
Is it right for you?
- It suits anyone who needs to arm or disarm without a phone or keypad.
- Issue one per user rather than sharing: each keyfob counts as a peripheral on the hub, and losing one means removing it from the system.
- It works with Dahua 433 MHz wireless hubs (the ARC3000H takes up to 64 keyfobs) and with the ARC2008C-V3 wired panel, which lists support for 32.
- Indoor rated, -10 to 55 °C.
Key features
- Four buttons: Away, Home, Disarm and SOS.
- The SOS button can be switched to control mode for other functions.
- Two-colour LED confirms the command was received: green for normal, red for abnormal.
- Two-way radio up to 500 m in open space, with frequency hopping and AES128 (Advanced Encryption Standard) encryption.
- Low battery detection and firmware updates through the cloud.
- 60 x 39.5 x 15 mm and 20 g, on one CR2032 battery rated for about 3 years.
What else you need
A Dahua 433 MHz wireless hub, or a Dahua ARC2008C-V3 wired panel, and one CR2032 battery.
Installation
No installer is needed. Fit the battery, pair the keyfob with the hub or panel, and assign it to a user.
Software and licences
Pairing and user assignment are done in the Dahua app or on the panel.
Before you buy
- Each keyfob takes one of the hub’s peripheral slots.
- Remove a lost keyfob from the system straight away.
Features

Size and fit
- Net Weight
- 20 g (0.04 lb)
Technical specifications
Key facts
- What is it?
- Keypads & RemotesBrand Dahua, model ARA24-W2
- How is it powered?
- CR2032 battery
- Which documents are available?
- Datasheet, user manual, installation / drawing (2), safety / legal information, quick start guide, and more Open documents
- Can SecurityGearHub help with installation?
- Setup guidanceManuals, wiring guides and answers to setup questions. On-site work is arranged separately where available. Ask about installation
- Not stated by the manufacturer
- outdoor rating, box contents
RelatedGuideWireless alarm system guideDocumentsAll Dahua documents
General
- Model
- ARA24-W2
- Indicator Light
- 1 × two-colour status indicator (green: normal, red: abnormal)
- Button
- 4 (Home, Away, Disarm, and SOS)
- Remote Update
- Cloud update
- Low Battery Detection
- Yes
- Carrier Frequency
- 433.1 MHz to 434.6 MHz
- Transmitter Power (EIRP)
- Limit 10 mW
- Communication Mechanism
- Two-way
- Communication Distance
- Up to 500 m (1,640.42 ft) in an open space
- Encryption Mode
- AES128
- Frequency Hopping
- Yes
- Anti-corrosion Level
- Basic Protection
Input
- Power Supply
- CR2032 battery
- Battery Life
- 3 years
- Power Consumption
- Max. 85 mW
Environment
- Operating Temperature
- , 10 °C to +55 °C (+14 °F to +131 °F) (indoor)
- Operating Humidity
- 10% to 90% (RH)
Physical
- Product Dimensions
- 60.0 mm × 39.5 mm × 15.0 mm (2.36" × 1.56" × 0.59") (L × W × H)
- Net Weight
- 20 g (0.04 lb)
- Gross Weight
- 65 g (0.14 lb)
- Casing Material
- PC + ABS
- Packaging Dimensions
- 135.0 mm × 98.5 mm × 27.8 mm (5.31" × 3.88" × 1.09") (L × W × H)
Approvals
- Certifications
- CE
- Warranty
- Manufacturer warranty under Dahua's terms. How claims work
Product attributes and shipping details
| Brand | Dahua |
|---|---|
| Radio Frequency | 433.1 MHz–434.6 MHz |
Downloads
Documentation
- Dahua ARA24-W2 datasheetDatasheet · This model · 433.2 KBDownload
- Dahua ARA24-W2 product pageOnline specifications · This model · dahuasecurity.comView official page
Certificate and compliance document (1)
- Dahua important safeguards and warnings V3.0.0Safety / legal information · General · materialfile.dahuasecurity.comDownload
User manual
Installation guide
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
What do the buttons do?
Away and Home arm the system in its two modes, Disarm switches it off and SOS raises an emergency alarm. SOS can be switched to control mode for other functions.
How long does the battery last?
About 3 years on one CR2032 battery, with a low battery warning.
How far does it work from the hub?
Up to 500 m in open space; less through walls.
How do I know the command got through?
The LED confirms it: green for normal, red for abnormal.
How many keyfobs can I add?
Up to 64 on the ARC3000H hub, and the ARC2008C-V3 wired panel lists support for 32.
Ask about this modelSetup, compatibility, what is in the box
Answers are automated. Do not enter personal or account details.
Looking for an alternative?
We list alternatives only when we have checked they suit the same job. Compare other models in the category, or ask us to suggest one for your site.





