Dahua DHI-ARD323-W2(868S) - Wireless Door/Window Magnetic Contact Detector
Product Features
- Two-way 868MHz wireless door/window magnetic contact detector
- Built-in temperature sensor, -15°C to +65°C measuring range
- AES128 encrypted communication with frequency hopping
- Up to 1,200m communication range in open space
- CR123A battery with up to 4 years battery life
- EN 50131 Grade 2 certified with tamper and low battery detection
Dahua DHI-ARD323-W2(868S) — Wireless Door/Window Magnetic Contact Detector
The DHI-ARD323-W2(868S) is a two-way, 868MHz wireless magnetic contact detector from Dahua for monitoring doors and windows on non-metal frames. It uses a reed switch sensor to detect opening movement of up to 40mm, and adds a built-in temperature sensor that measures from -15°C to +65°C, with real-time status and alarm push notifications available through the Dahua DMSS app.
Who is it for?
This detector is designed to work as part of a Dahua wireless alarm system, reporting door and window openings back to a compatible Dahua wireless control hub. It suits installers and end users adding perimeter protection to non-metal doors and windows where running cable is impractical, with two-way, AES128-encrypted communication and frequency hopping for a stable radio link back to the panel.
Key specification
| Sensor | Reed switch |
|---|---|
| Movement Distance | < 40 mm (1.57") |
| Scenario | Non-metal doors |
| Carrier Frequency | 868.0 MHz–868.6 MHz |
| 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 |
| Measuring Range (Temperature) | –15 °C to +65 °C (+5 °F to +149 °F) (indoor) |
| Power Supply | CR123A battery |
| Battery Life | 4 years (external input type NO); 2 years (external input type NC or Pulse) |
| Low Battery Detection | Yes |
| Tamper | Yes |
| 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) |
| Certifications | CE EN 50131-1:2006+A1:2009+A2:2017+A3:2020, EN 50131-6:2017, EN 50131-5-3:2017, EN 50131-2-6:2008, Security Grade 2, Environmental Class II |
What you will need
- A compatible Dahua wireless alarm hub/panel to arm, monitor and receive alerts from this detector — it does not work as a standalone device.
- One CR123A battery (rated for up to 4 years' use, with low battery and tamper detection built in).
Frequently asked questions
Does this detector work on metal doors or frames?
No, Dahua specifies this sensor for non-metal doors — metal can interfere with the reed switch and reduce reliable detection.
Do I need a separate hub to use this detector?
Yes, the DHI-ARD323-W2(868S) communicates over 868MHz to a compatible Dahua wireless alarm hub or control panel; it cannot operate on its own.
How is the detector powered?
It runs on a single CR123A battery, rated for up to 4 years depending on the external input configuration, with low battery and tamper alerts sent back to the hub.
Explore the full Dahua range, browse our Intruder alarms category, or contact us on 01902 902251. You can also visit our Wolverhampton trade counter to see products in person.
| Product Code | DHI-ARD323-W2(868S) |
|---|---|
| Type/Format | Contact |
| Manufacturer | Dahua |
| Colour | Brown |
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