Dahua DHI-ARA12-W2 wireless indoor alarm siren and sounder, 433MHz two-way, 105dB(A)

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Dahua DHI-ARA12-W2 - Wireless Indoor Alarm Siren and Sounder

Name: Dahua DHI-ARA12-W2 - Wireless Indoor Alarm Siren and Sounder
Brand: Dahua
SKU: DHI-ARA12-W2
Price: 57.33 GBP
Availability: InStock

£57.33 £47.77

In stock

SKU

DHI-ARA12-W2

Product Features

Dahua DHI-ARA12-W2 is a wireless indoor alarm siren and alarm sounder that sounds when it receives alarm signals.
105 dB(A) at high volume, with 3 volume levels.
Two-way 433 MHz radio with frequency hopping and AES128 encryption, up to 800 m in open space.
Tamper alarm, low battery alarm and signal strength detection.
Runs on 2 x CR123A batteries, rated for 2.5 years in working status.

Product Description

Product Specifications

Dahua DHI-ARA12-W2 - Wireless Indoor Alarm Siren

The Dahua DHI-ARA12-W2 is a wireless indoor alarm siren and alarm sounder (Dahua's own name is Wireless Siren) that sounds when it receives alarm signals. It uses two-way, frequency-hopping radio on 433.1-434.6 MHz with AES128 encryption and reaches up to 800 m in open space. It has 3 volume levels, reaching 105 dB(A) at high volume, a tamper alarm and a low battery alarm, and it runs on 2 x CR123A batteries rated for 2.5 years in working status.

Also listed as ARA12-W2.

Key features

Wireless indoor alarm siren that sounds when it receives alarm signals
Sound pressure up to 105 dB(A) at high volume, with 3 volume levels
Two-way 433 MHz radio with frequency hopping and AES128 encryption, up to 800 m in open space
Tamper alarm, low battery alarm and signal strength detection
Temperature monitoring, listed in Dahua's feature summary
Cloud update with automatic recovery from update failure
2 x CR123A batteries, rated for 2.5 years in working status; bracket mount

Technical specification

Model	DHI-ARA12-W2
Dahua description	Wireless Siren
Indicator light	1 x green alarm indicator
Button	1 x power button
Volume control	3 volume levels
Sound pressure	Volume high: 105 dB(A); in anechoic chamber: high 84 dB(A) at 1 meter, medium 78 dB(A) at 1 meter
Test mode	Yes
Tamper alarm	Yes
Low battery alarm	Yes
Signal strength detection	Yes
Remote update	Cloud update
Carrier frequency	433.1 MHz-434.6 MHz
Transmitter power (EIRP) limit	10 mW
Communication distance	Up to 800 m (2,624.67 ft) in an open space
Communication mechanism	Two-way
Encryption mode	AES128
Frequency hopping	Yes
Power supply	2 x CR123A batteries
Battery life	2.5 years in working status (triggered twice every week and alerts 120 s for each triggering)
Power consumption	Max. 230 mW
Operating environment	-10 °C to +55 °C (+14 °F to +131 °F), indoor; 10%-90% RH
Installation	Bracket mount
Product dimensions	81.0 x 81.0 x 26.0 mm (L x W x H)
Net weight	105 g (0.23 lb)
Casing material	PC + ABS
Certifications	CE

Related Dahua alarm products

Other Dahua wireless alarm products we supply: DHI-ARA12-W2(868) wireless indoor siren, DHI-ARA13-W2(868R) red siren, DHI-ARA13-W2(868O) orange siren, DHI-ARA13-W2(868B) blue siren, DHI-ARC3800H-FW2(868) alarm hub, wireless alarm kit with keyfobs, wireless alarm kit with keypads.

Dahua lists this model on 433.1 MHz-434.6 MHz; the DHI-ARA12-W2(868) variant is listed on 868.0 MHz-868.6 MHz with up to 1,000 m range.

Common questions

How loud is the DHI-ARA12-W2 siren?

Dahua lists 105 dB(A) at high volume. In an anechoic chamber it measures 84 dB(A) at 1 meter on high and 78 dB(A) at 1 meter on medium. There are 3 volume levels.

What frequency and range does it use?

It uses 433.1 MHz-434.6 MHz, two-way communication with frequency hopping and AES128 encryption, up to 800 m in an open space. The transmitter power (EIRP) limit is 10 mW.

How is it powered and how long do the batteries last?

It takes 2 x CR123A batteries. Dahua rates battery life at 2.5 years in working status, triggered twice every week with a 120 s alert each time.

Can it be used outdoors?

Dahua lists the operating environment as -10 °C to +55 °C for indoor use.

Does it have tamper protection?

Yes. It has a tamper alarm and a low battery alarm, and supports signal strength detection and cloud update with automatic recovery from update failure.

How is it fixed?

It is a bracket-mount unit measuring 81.0 x 81.0 x 26.0 mm and weighing 105 g.

Full manufacturer specification: Dahua product page

Browse the full Dahua range, our intruder alarms or contact us on 01902 902251. 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 range: Dahua AirShield alarms · Dahua cameras.