SKU: 93054227473

DAHUA ARA12-W2(868) Wireless siren

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Description

DAHUA ARA12-W2(868) Wireless sirenARA12 W2(868) Wireless siren > Signal strength detection. > Low battery alarm. > Temperature measurement. > Frequency hopping function and two way communication technology > Cloud update and automatic recovery from update failure. Product Data Port Indicator Light 1 green alarm indicator Button 1 power button Function Tamper Alarm Yes Remote Upgrade Cloud update Test Mode Yes Low Battery Alarm Yes Search Signal strength detection Wireless Carrier

ARA12-W2(868)

Wireless siren

> Signal strength detection.
> Low battery alarm.
> Temperature measurement.
> Frequency hopping function and two-way communication technology
> Cloud update and automatic recovery from update failure.



Product Data

Port

Indicator Light

1 × green alarm indicator

Button

1 × power button

Function

Tamper Alarm

Yes

Remote Upgrade

Cloud update

Test Mode

Yes

Low Battery Alarm

Yes

Search

Signal strength detection

Wireless

Carrier Frequency

868.0 MHz–868.6 MHz

Communication Distance

Up to 1,000 m (3,280.84 ft) in an open space

Communication Mechanism

Two-way

Frequency Hopping

Yes

Encryption Mode

AES128

General

Power Supply

2 × CR123A batteries

Power Consumption

Max. 240 mW

Operating Temperature

–10 °C to +55 °C (+14 °F to +131 °F) (indoor)

Operating Humidity

10%–90% (RH).

Product Dimensions

81.0 mm × 81.0 mm × 26.0 mm (3.19" × 3.19" × 1.02") (L × W × H)

Packaging Dimensions

135.0 mm × 98.5 mm × 56.8 mm (5.31" × 3.88" × 2.24") (L × W × H)

Installation

Bracket mount

Net Weight

105 g (0.23 lb)

Gross Weight

175 g (0.39 lb)

Certifications

CE

Battery Life

2.5 years in working status (triggered twice every week and alerts 120 s for each triggering)

Sound Pressure

≥ 105 ± 3 dB\1M

Casing

PC + ABS

Temperature

Measuring Range

–15 °C to +65 °C (+18.8 °F to +149 °F) (indoor)

Measuring Precision

± 1 °C (± 33.8 °F)

Resolution

1 °C (33.8 °F)

Audio/Video Parameter

Volume Adjustment

3 volumn levels
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 93054227473

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4.1 ★★★★★
Based on 584 reviews
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Product Reviews
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Verified Purchase
NC Coach
San Leandro, US
★★★★★ 4
Good quality pillows overall
Size: King (Pack of 2), Color: White
Got a set of these for my wife and myself as we were struggling with our old pillows. These have some really good qualities and some things we'd like to see changed. First, the good: These are look and feel like they are high quality and made with good materials. The foam itself has a very nice feel to it. We love the fact they are adjustable to add or remove foam. They come with a pretty substantial amount already in the pillow. We appreciate the CertiPur certification. Now the improvements or changes we'd like to see: The foam, while feeling great, doesn't bounce back well if you scrunch your pillows, and so every day you have to fluff and reshape the pillow, moreso than some other memory foam pillows we've owned. One side of the pillow is cooled and you can feel that even through the pillow case, and that's a great thing. However, one side is not cooled and we'd have preferred if both sides were made of the cooling material. Overall, these are good pillows and we are not disappointed with the purchase. They are not, however, our perfect pillows (which do seem hard to find), and at some point in the future will probably make their way to the guest bedroom. We would rate them as some of the better pillows we've tried and feel most people would probably like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2025
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Perfect Pillow
Size: Queen (Pack of 1), Color: White
These are the best pillows ever. You can adjust the firmness or softness to whatever you want. For years i used a soft latex pillow , which you cant get anymore. I will never use another pillow. I have purchased 6 of these after the first one. You pick your own comfort level. Best ever. No more neck aches.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
M
Verified Purchase
Mark
West Palm Beach, US
★★★★★ 5
Hallelujah… finally, I found the right pillow!!!
Size: Queen (Pack of 1), Color: White
I have spent a lot of money searching for the right pillow. I recently tried to Tempur-pedic that cost twice with this pillow cost. Tempur-pedic flattened out. I’ve had this pill for a few weeks now and it works wonders. I am a paraplegic. You can have a lot of neck problems. I love the fact that this pillow is adjustable. I immediately saw it was too stuffy and took a bunch out. It works perfect so glad I didn’t spend money on a $200 purple pillow. I read a lot of reviews and there were a lot of complaints about the odor. Mine did smell funny when it came out of the box. I immediately threw it in the dryer with a few bounce fabric sheets came out smelling fine. Pillows are a very individual thing, but I think for 40 bucks this pillow is worth a try. I’m really enjoying mine about one of those silk pillowcases to go over it and it sleeps cool and comfortable. Best wishes in your search for the right pillow. Update: I’ve been using this pillow several months and it continues. Give me a good night rest pain-free.. well worth the money. UPDATE: I have been using this pillow for three months and it still works great. It does not flat out or get hot..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
D
Verified Purchase
Danica Mandic
Louisville, US
★★★★★ 5
Soft comfortable very good pillow
Size: King (Pack of 1), Color: White
I really love my new pillow it's great and comfortable. Yes, it has a little smell, but if you wash the pillowcase and put the pillow on the window for a day you won't notice anything anymore.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
Z
Verified Purchase
Zachery Jeffries
Omaha, US
★★★★★ 5
Best place for head
Size: Queen (Pack of 1), Color: White
Do you love not getting sleep and sweating all over your pillow at night when you are asleep? If so then don't buy this pillow! If you want a good nights sleep and cool pillow like me this is the one. Ive always been ehh towards spending so much on a pillow but its 100% worth it, I sleep so much better and it forms to my head and keeps me cool at night. Great support even for my big head and comes with a bag of extra stuffing if you want to have a little more firmer pillow. Highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026

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