Dahua DHI-ARD323-W2(868S) small wireless magnetic door contact sensor, 868MHz

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Dahua DHI-ARD323-W2(868S) - AirShield Small Wireless Magnetic Door Contact Sensor

Name: Dahua DHI-ARD323-W2(868S) - AirShield Small Wireless Magnetic Door Contact Sensor
Brand: Dahua
SKU: DHI-ARD323-W2-868S
Price: 34.18 GBP
Availability: InStock

£34.18 £28.48

In stock

SKU

DHI-ARD323-W2-868S

Product Features

Dahua DHI-ARD323-W2(868S) small wireless magnetic door contact sensor and door detector with reed switch.
Intruder alarm door contact that triggers an alarm when armed, with open or closed status in the DMSS app.
868MHz two-way link with AES128 encryption and frequency hopping, up to 1,200m in open space.
Tamper and low battery alarms and temperature monitoring, powered by one CR123A battery.

Product Description

Product Specifications

Dahua DHI-ARD323-W2(868S) — AirShield Small Wireless Door Contact Sensor

The Dahua DHI-ARD323-W2(868S) is a small wireless door contact sensor and door detector from Dahua's AirShield wireless alarm range; Dahua's UK page lists it as "Wireless Door Detector (Small)". A reed switch sensor and a magnet make it a magnetic door contact: it triggers an alarm when an armed door is opened, and the open or closed state of doors and windows shows in the DMSS app in real time. It is a component for a Dahua wireless alarm system and connects to a Dahua alarm hub over 868MHz.

Also listed as ARD323-W2(868S).

Key features

Reed switch sensor with a magnet triggers an alarm when an armed door is opened; movement distance under 40 mm.
Door and window open or closed status shown in the DMSS app in real time, with alarm notifications when armed.
868MHz two-way communication with AES128 encryption and frequency hopping, up to 1,200 m in open space.
Signal strength detection, low battery alarm, tamper alarm and temperature monitoring.
One CR123A battery: up to 4 years (external input type NO) or 2 years (NC or Pulse).
1-channel dry contact input as an external zone.
Cloud update with automatic recovery from update failure.
Works as an intruder alarm door contact, with EN 50131 Security Grade 2 and Environmental Class II.

Technical specification

Model	DHI-ARD323-W2(868S)
Sensor	Reed switch
Movement distance	< 40 mm (1.57")
Scenario	Non-metal doors
External zone	1-channel dry contact input
Carrier frequency	868.0 MHz-868.6 MHz
Transmitter power (EIRP)	Limit 25 mW
Communication distance	Up to 1,200 m (3,937.01 ft) in an open space
Communication mechanism	Two-way, with frequency hopping
Encryption mode	AES128
Power supply	CR123A battery
Battery life	4 years (external input type NO); 2 years (external input type NC or Pulse)
Power supply type and thresholds	Type C; low battery threshold 2.7 V; battery restore threshold 2.8 V
Power consumption	Max. 125 mW
Temperature measuring range	-15 °C to +65 °C (+5 °F to +149 °F) (indoor), resolution 1 °C (33.8 °F)
Tamper alarm	Yes
Low battery alarm	Yes
Remote upgrade	Cloud update
Indicator and button	1 green alarm indicator; 1 power button
Operating temperature and humidity	-10 °C to +55 °C (+14 °F to +131 °F) (indoor); 10%-90% (RH)
Product dimensions	100.2 mm × 20.8 mm × 20.3 mm (3.94" × 0.82" × 0.80") (L × W × H)
Installation	Bracket mount
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

Works with

Dahua DHI-ARC3800H-FW2(868) 4G wireless alarm hub (868MHz): Dahua's datasheet shows detectors reporting to an alarm hub over RF868
Dahua DHI-ARA12-W2(868) wireless indoor siren (868MHz): the datasheet application diagram also shows a wireless siren on the same hub
Dahua DHI-ART-ARC3000H-03-GW2(868) AirShield wireless security alarm kit

Other versions

Dahua DHI-ARD323-W2(868) wireless door sensor: the standard version of this door detector

Common questions

Is it a door sensor, a door contact or a door alarm?

Dahua calls it a wireless door detector: a reed switch sensor plus a magnet. It triggers an alarm when an armed door is opened, and the DMSS app shows the open or closed state of doors and windows in real time. Door sensor and door contact are two names for the same kind of device.

Does it need an alarm hub?

Yes. Dahua's application diagram shows the detector linking to an alarm hub over RF868, with alarm events passed on to the DMSS app.

Can I fit it to a metal door?

Dahua lists the scenario as non-metal doors, with a movement distance of under 40 mm between the sensor and the magnet.

How far can it be from the hub?

Up to 1,200 m (3,937 ft) in an open space, using 868MHz two-way communication with frequency hopping. Dahua quotes this figure for open space.

How long does the battery last?

It takes one CR123A battery. Dahua gives 4 years when the external input type is NO and 2 years when it is NC or Pulse, and the detector has a low battery alarm.

Can I connect another wired contact?

Dahua lists a 1-channel dry contact input as an external zone.

What is the difference between the 868 and 868S?

Dahua's UK page lists the S version as "Wireless Door Detector (Small)". Its datasheet gives the same radio, battery and sensor figures as the standard Dahua DHI-ARD323-W2(868) wireless door sensor and adds a Type C power supply with a 2.7 V low battery threshold and a 2.8 V battery restore threshold.

Full manufacturer specification: Dahua product page

Supplied by Zenith Security Co, Wolverhampton. We deliver to England, Scotland and Wales, or you can collect from our Wolverhampton trade counter (please call first).

Browse the full Dahua range, more intruder alarms, or contact us on 01902 902251 or visit our Wolverhampton trade counter for advice.

Browse the range: Dahua AirShield alarms · Dahua cameras.