At a glance
- Sensor
- Reed switch
- Battery Life
- 4 years 2 years
- Operating Temperature
- 10 °C to +55 °C (indoor)
- Installation
- Bracket mount
- Carrier Frequency
- 433.1 MHz to 434.6 MHz
- Measuring Range (Temperature)
- 15 °C to +65 °C (indoor)
Dahua ARD323-W2(S) Wireless Door and Window Detector
₹3,080 Incl. GST
₹2,610 + 18% GST
At a glance
- Sensor
- Reed switch
- Battery Life
- 4 years 2 years
- Operating Temperature
- 10 °C to +55 °C (indoor)
- Installation
- Bracket mount
- Carrier Frequency
- 433.1 MHz to 434.6 MHz
- Measuring Range (Temperature)
- 15 °C to +65 °C (indoor)
Slim sensor that tells your Dahua alarm when a door, window, cabinet or shutter is opened, for non-metal doors in homes, shops and offices. 433 MHz two-way radio, a wired input for a second detector, up to 4 years on one CR123A battery.
- WarrantyManufacturer warranty under Dahua's terms. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
- InstallationBracket mount
Overview
The Dahua ARD323-W2(S) is a slim wireless door and window sensor. A reed switch in the main body and a separate magnet detect when a door or window opens, and the sensor reports to a Dahua wireless alarm hub over two-way 433 MHz radio. Fit it on an entry door, window, cabinet or shutter in a home, shop or office to raise an alarm, or a chime, when something is opened, and use its wired input to cover a nearby wired contact with the same transmitter.
Is it right for you?
- It suits non-metal doors and windows in a Dahua 433 MHz wireless alarm.
- For a steel door or shutter, a wired metal contact on a wireless input module suits better.
- If you also want to know when a frame is struck or a window is tilted, the ARD324-W2(S) adds shock and tilt detection.
- Indoor use only, -10 to 55 °C.
Key features
- Reed switch that triggers when the gap to the magnet exceeds about 40 mm.
- One external input that accepts a normally open (NO), normally closed (NC) or pulse type wired detector, so one sensor can cover two openings.
- Communication range up to 1,200 m in open space, with frequency hopping and AES128 (Advanced Encryption Standard) encryption.
- Tamper alarm, low battery warning and test mode.
- Built-in temperature reading from -15 to 65 °C.
- One CR123A battery: about 4 years with the external input set to NO, about 2 years set to NC or pulse.
- Slim 100.2 x 20.8 x 20.3 mm body, 70 g, on a mounting bracket.
- Firmware updates through the cloud by way of the hub.
What else you need
A Dahua 433 MHz wireless hub such as the ARC3000H and one CR123A battery.
Installation
An alarm installer can fit it, and a confident owner can manage a home. Fix the body on the frame and the magnet on the door or window with the supplied bracket, keeping the gap under 40 mm when closed, wire any extra contact to the external input, then pair it in the Dahua app and check signal strength.
Software and licences
Pairing, zone type and test mode are set in the Dahua app. Firmware updates arrive through the cloud.
Before you buy
- For non-metal doors only.
- Battery life depends on the external input setting: about 4 years in NO mode, 2 years in NC or pulse mode.
- Indoor use only.
Features

Size and fit
- Net Weight
- 70 g (0.15 lb)
- Installation
- Bracket mount
Technical specifications
Key facts
- What is it?
- Door & Window SensorsBrand Dahua, model ARD323-W2(S)
- How is it powered?
- CR123A battery
- Which documents are available?
- Datasheet (2), user manual, installation / drawing (3), quick start guide, safety / legal information, 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
- ARD323-W2(S)
- Indicator Light
- 1 × green alarm indicator
- Button
- 1 × power button
- Remote Update
- Cloud update
- Low Battery Detection
- Yes
- Sensor
- Reed switch
- Movement Distance
- less than 40 mm (1.57")
- Test Mode
- Yes
- Scenario
- Non-metal doors
- Carrier Frequency
- 433.1 MHz to 434.6 MHz
- Transmitter Power (EIRP)
- Limit 10 mW
- Communication Mechanism
- Two-way
- Communication Distance
- Up to 1,200 m (3,937.01 ft) in an open space
- Encryption Mode
- AES128
- Frequency Hopping
- Yes
- Power Supply Type
- Type C
- Low Battery Threshold
- 2.7 V
- Battery Restore Threshold
- 2.8 V
- Installation
- Bracket mount
- Anti-corrosion Level
- Basic Protection
Input
- Power Supply
- 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
Protection
- Tamper
- Yes
Environment
- Measuring Range (Temperature)
- , 15 °C to +65 °C (+5 °F to +149 °F) (indoor)
- Operating Temperature
- , 10 °C to +55 °C (+14 °F to +131 °F) (indoor)
- Operating Humidity
- 10% to 90% (RH)
- Storage Temperature
- , 10 °C to +55 °C (+14 °F to +131 °F) (indoor)
- Storage Humidity
- 10% to 90% (RH)
Physical
- Product Dimensions
- 100.2 mm × 20.8 mm × 20.3 mm (3.94" × 0.82" × 0.80") (L × W × H)
- Net Weight
- 70 g (0.15 lb)
- Gross Weight
- 115 g (0.25 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 ARD323-W2(S) datasheet (v002.000)Datasheet · This model · 322.9 KBDownload
- Dahua ARD323-W2(S) datasheet (v002.000 file 2)Datasheet · This model · 337.0 KBDownload
- Dahua ARD323-W2(S) 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
- ARD323-W2(868S) INSTALLATION METHOD ENInstallation / drawing · This model · materialfile.dahuasecurity.comDownload
- ARD323-W2(S) INSTALLATION PROCEDUREInstallation / drawing · This model · materialfile.dahuasecurity.comDownload
- ARD323-W2(868S) DIMENSIONSInstallation / drawing · This model · materialfile.dahuasecurity.comDownload
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
Can I use it on a steel door?
No. Dahua specifies it for non-metal doors. Use a wired metal contact on a wireless input module instead.
How long does the battery last?
About 4 years on one CR123A with the external input set to NO, or about 2 years set to NC or pulse.
Can it cover a second door or window?
Yes. Its external input takes one wired NO, NC or pulse detector, such as a nearby wired contact.
How far can it be from the hub?
Up to 1,200 m in open space. Walls reduce this, so check signal strength in the app.
Can it be used outdoors?
No. It is rated for indoor use, -10 to 55 °C.
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