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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
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Description
DAHUA HY-SA40A Standalone Smoke AlarmHY SA40A Standalone Smoke Alarm > Split spectrum sensor technology > Test and silence features in one single button, silenced by a working infrared remote controller > Loud sound output over 85 dB(A) at 3 meters > Low quiescent current consumption > Surface mount device (SMD) circuit board design > Low battery warning signal > Sealed lithium battery, easy installation
HY-SA40A
Standalone Smoke Alarm
> Split-spectrum sensor technology
> Test and silence features in one single button, silenced by a working infrared remote controller
> Loud sound output over 85 dB(A) at 3 meters
> Low quiescent current consumption
> Surface-mount device (SMD) circuit board design
> Low battery warning signal
> Sealed lithium battery, easy installation
> Test and silence features in one single button, silenced by a working infrared remote controller
> Loud sound output over 85 dB(A) at 3 meters
> Low quiescent current consumption
> Surface-mount device (SMD) circuit board design
> Low battery warning signal
> Sealed lithium battery, easy installation
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Versatile settings
Color: White, Size: Queen
Excellent pillow with multiple set ups!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
★★★★★ 5
supportive
Color: White, Size: King
wife loves her new pillow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 5
Value and quality
Color: White, Size: King
Very nice pillow. Great quality and Very fluffy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Comfortin
Color: White, Size: Queen
Levels of comfort helps sore shoulder
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 1
Nope
Color: White, Size: Queen
another side sleeper pillow that didn't work
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026