ARD324-W2 - Door/window sensor Dahua Technology - Free user manual and instructions
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| Product Type | Door/Window Sensor |
| Brand | Dahua Technology |
| Model | ARD324-W2 |
| Category | Security Alarm Sensor |
| Connectivity | Wireless (2.4 GHz RF) |
| Detection Method | Magnetic Reed Switch |
| Wireless Range | Up to 100 m (open area) |
| Battery Type | 2 × AA Alkaline Batteries |
| Battery Life | Up to 1 year (typical use) |
| Operating Temperature | -10°C to 50°C |
| Operating Humidity | 10% to 90% RH |
| Dimensions | 70 × 30 × 20 mm (sensor) |
| Weight | 60 g (including batteries) |
| Color | White |
| Installation | Adhesive tape or screw mount |
| Compatibility | Dahua Smart Home Hub / NVR |
| Security Features | Tamper alarm, low battery detection |
| Maintenance & Cleaning | Check battery periodically; wipe with dry soft cloth |
| Safety | Operate within specified temperature/humidity range |
| Spare Parts & Repairability | Batteries replaceable; no user-serviceable parts |
Frequently Asked Questions - ARD324-W2 Dahua Technology
How do I install the ARD324-W2 door/window sensor?
Use the included adhesive tape or screws to mount the sensor on the door/window frame and the magnet on the moving part. Align the sensor marker with the magnet when closed.
How do I pair the sensor with my Dahua Smart Home Hub?
In the Dahua Smart Home app, enter the device pairing mode, then press the pairing button on the sensor for 5 seconds until the LED blinks. Wait for the hub to confirm.
What battery does the ARD324-W2 use?
It uses 2 × AA alkaline batteries. Replace them when the low battery indicator appears in the app.
How do I reset the sensor to factory defaults?
Remove the batteries, then reinsert them while holding the pairing button for 10 seconds. Release when the LED flashes three times.
What is the wireless range of this device?
The sensor has a 100-meter open-air range. Inside typical homes, expect 30-50 meters due to walls and interference.
Can I use the sensor with other smart home systems?
The sensor is designed for Dahua Smart Home and is not officially compatible with Zigbee or Z-Wave hubs. You need a Dahua Hub or NVR.
How do I know if the sensor is working?
When you open or close the door, the sensor sends a status change to the hub. The LED flashes green during normal trigger and red for low battery.
What should I do if the sensor shows offline?
First check the battery level. Then move the sensor closer to the hub, and press the pairing button to reconnect. If it still fails, perform a factory reset.
Does the ARD324-W2 have tamper protection?
Yes, it features a tamper switch that triggers an alarm when the sensor is removed from the mounting surface.
How should I clean and maintain the sensor?
Use a dry soft cloth to clean the sensor exterior. Do not use water or solvents. Periodically test the device and check battery status every few months.
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Download the instructions for your Door/window sensor in PDF format for free! Find your manual ARD324-W2 - Dahua Technology and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. ARD324-W2 by Dahua Technology.
USER MANUAL ARD324-W2 Dahua Technology
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Product information
Brand : Dahua Technology
Model : ARD324-W2
Category : Door/window sensor