# Door/Window Contact Sensor DAHUA ARD323-W2(868S) Wired Ceiling Mount 868 MHz Battery-powered

**URL:** https://aio.lv/en/product--dahua-ard323-w2868s--10822506
**Data updated:** 2026-04-28 17:43 (EEST)
**Category:** Smart Sensors
**Manufacturer:** DAHUA
**Manufacturer code:** ARD323-W2(868S)
**EAN:** 6923172531490
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 29.33 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dahua-ard323-w2868s--10822506

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

DAHUA ARD323-W2(868S) is a wired ceiling-mount door/window contact sensor operating at 868–868.6 MHz with a detection range up to 1200 m. Designed for indoor placement, it features alarm LED indicators and is powered by an alkaline battery with up to 5 years of life. Suitable for intrusion detection and access monitoring in residential and commercial installations.

## Long description

DAHUA ARD323-W2(868S) is a battery-powered door and window contact sensor for indoor use. The device consists of a sensor and a magnet that detect opening and closing of doors or windows and can trigger an alarm when the system is armed. It communicates status updates to the DMSS app in real time and provides timely notifications of alarm events for intrusion detection and access monitoring.
Advantages
The sensor operates in the 868–868.6 MHz band and supports long-range wireless communication up to 1200 m in open conditions. It is designed for ceiling or surface mounting, includes visible alarm LED indicators, and runs on an alkaline battery that can provide up to five years of service under typical use. The compact design and straightforward installation make it suitable for integration with alarm systems and remote monitoring via mobile app.
Suitable for
 Residential villas and apartments for intrusion detection
 Retail shops and small commercial premises for access monitoring
 Indoor doors and windows where discreet ceiling or surface mounting is preferred
When it may not be suitable
This device is intended for indoor use and ceiling or surface mounting; it is not designed for outdoor exposure or harsh environmental conditions. Performance and communication range depend on building structure and interference; in heavily reinforced or metal-rich environments the effective range may be reduced.
Key specifications
 Operating frequency: 868–868.6 MHz
 Maximum communication range: up to 1200 m (open conditions)
 Power supply: alkaline battery (typical life up to 5 years)
 Mounting: ceiling or surface mount for indoor use
 Indicators: alarm LED
How to use
Mount the sensor and magnet on the door or window frame and the moving leaf so that they align when closed. Insert the alkaline battery following polarity indications, then pair the sensor with the alarm panel or gateway and configure it in the DMSS app. When the system is armed, the sensor reports open/closed state in real time and triggers notifications or alarms if the contact is opened.
What to consider before purchase
 Intended use is indoor mounting; not suitable for outdoor or exposed installations
 Actual wireless range depends on site layout, walls, and interference sources
 Check compatibility with your alarm panel or gateway and DMSS app support
 Plan battery replacement intervals based on expected usage to maintain reliability
Usage recommendations
For reliable performance, install the sensor and magnet with correct alignment and keep the mounting area free from large metal objects or dense obstructions. Test connectivity and alarm notifications in the DMSS app after installation and replace the battery before end-of-life to avoid missed alarms.

## Specifications

| Feature | Value |
|---|---|
| Power consumption (typical) | 0.125 W |
| Battery life | 5 year(s) |
| Mounting type | Ceiling |
| Placement | Indoor |
| Power source type | Battery |
| Detection distance | 1200 m |
| Tamper protection | Yes |

### Features

| Feature | Value |
|---|---|
| Certification | CE |
| LED indicators | Alarm, Y |
| Connectivity technology | Wired |
| Product colour | White |
| Operating frequency | 868 - 868.6 |
| Housing material | Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS) |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Alkaline |

### Power

| Feature | Value |
|---|---|
| Battery type | CR123A |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.07 kg |
| Package weight | 115 g |
| Height | 20.3 mm |
| Width | 100.2 mm |
| Depth | 20.8 mm |
| Package depth | 98.5 mm |
| Package height | 27.8 mm |
| Package width | 135 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 90 |
| Operating temperature (T-T) | -10 - 55 |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the DAHUA ARD323-W2(868S) Door/Window Contact Sensor cost, and is it available for purchase?

The price is 35.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All DAHUA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized DAHUA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connectivity technology, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for DAHUA ARD323-W2(868S) Door/Window Contact Sensor?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10822506/60150123_large.webp