Dahua DHI-ARD323-W2 - Wireless Door/Window Contact Sensor
Product Features
- Wireless door/window contact sensor using a reed switch, ideal for non-metal doors
- 433.1–434.6 MHz two-way wireless communication with up to 1,200 m open-space range
- AES128 encryption and frequency hopping for a stable, secure connection
- Low battery detection and tamper protection built in
- Powered by a CR123A battery, lasting up to 4 years depending on the external input type
Dahua DHI-ARD323-W2 — Wireless Door/Window Contact Sensor
The Dahua DHI-ARD323-W2 is a wireless door and window contact sensor that uses a reed switch to detect movement of less than 40 mm, designed for non-metal doors as part of a Dahua wireless alarm system.
Who is it for?
This contact sensor suits installers and end users building a Dahua wireless intruder alarm system who need to monitor doors and windows for unauthorised opening. It reports real-time status to a compatible Dahua wireless alarm hub, which can push alarm notifications to the DMSS app when the system is armed.
Key specification
| Sensor | Reed switch |
|---|---|
| Movement Distance | < 40 mm (1.57") |
| Scenario | Non-metal doors |
| Carrier Frequency | 433.1 MHz–434.6 MHz |
| Communication Distance | Up to 1,200 m (3,937.01 ft) in an open space |
| Communication Mechanism | Two-way |
| Encryption Mode | AES128 |
| Power Supply | CR123A battery |
| Battery Life | Up to 4 years (external input NO) / 2 years (external input NC or Pulse) |
| Tamper | Yes |
| Low Battery Detection | Yes |
| Product Dimensions | 100.2 mm × 20.8 mm × 20.3 mm |
What you will need
- A compatible Dahua wireless alarm hub/panel to receive and manage alerts from this sensor
- A CR123A battery (Type C power supply) to power the sensor, lasting up to 4 years depending on the external input configuration
Frequently asked questions
Does this sensor work on metal doors?
No, Dahua specifies this sensor for non-metal doors and windows, which is how the reed switch reliably reads the magnetic gap.
Does it need a separate alarm panel?
Yes, the DHI-ARD323-W2 communicates wirelessly to a compatible Dahua wireless alarm hub/panel, which is required to arm, monitor and trigger alarm events.
Can I connect a wired detector to it?
Yes, it includes an external input for connecting an additional wired detector.
Explore the full Dahua range, browse our Intruder alarms category, contact us on 01902 902251, or visit our Wolverhampton trade counter for advice.
| Product Code | DHI-ARD323-W2 |
|---|---|
| Type/Format | Contact |
| Manufacturer | Dahua |
| Colour | Brown |
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