SKU: 40525999040

DAHUA®|ARD512-W2(868)|3 YR WTY. Airshield Wireless Glass Break Detector

Sale price$54.00 Regular price$60.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

DAHUA®|ARD512-W2(868)|3 YR WTY. Airshield Wireless Glass Break DetectorThe Wireless Glass Break Detector recognizes when different types of glass are breaking, triggering alarms in real time. With its advanced technology, it picks up the low frequency and high frequency that glass breaks at, reducing the occurrence of false alarms caused by noise interference from the environment. It also comes with 2 external ports that can connect to third party wired detectors. When placed in a home or building, it helps protect

The Wireless Glass Break Detector recognizes when different types of glass are breaking, triggering alarms in real time. With its advanced technology, it picks up the low-frequency and high-frequency that glass breaks at, reducing the occurrence of false alarms caused by noise interference from the environment. It also comes with 2 external ports that can connect to third-party wired detectors. When placed in a home or building, it helps protect families and work places from intrusions.

Specifications

  • Detects when the glass is broken, triggering alarms for different types of glass such as tempered, double-glazed, laminated, wired, plate and float glass.
  • Detects high and low frequency sounds at the same time, and uses algorithms to reduce the occurrence of false alarms.
  • Two-channel alarm input.
  • Cloud update and automatic recovery from update failure.
  • The two-way wireless encrypted communication mechanism improves the security and stability of communication.
  • With the wireless frequency hopping mechanism, the device auto matically hops to other available frequency bands when the original frequency band is being interfered with by other wireless radios, to ensure communication remains stable.
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: 40525999040

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4.0 ★★★★★
Based on 16 reviews
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Verified Purchase
B. Stevens
Grantham, US
★★★★★ 5
Excellent Product!
Added this to my evening Magnesium Glycinate about 2 or 3 weeks ago. My difficulty getting a full nights sleep gradually started to improve. I am now averaging 7 or more hours straight, up from 2.5 - 3hrs. Waking feeling refreshed and more alert, not tired and groggy now. No more mid morning slump. Just keeps getting better... it's not instant but, continues to improve. These improvements alone are well worth the cost. Also, seems to have added an extra kick to the other reason I take Magnesium... my hip pain and lack of flexibility has also improved. Almost no pain now and flexibility has gone from zero to at least 50% now. I can bend at the hip now and look forward to being able to put on socks, tie shoe laces, scrub feet and trim toenails without assistance! I have always been physically active until the years of unconsciously favoring my left leg after breaking my right leg in several places ...twice when I was younger began to take a toll on my flexibility. Starting gradually in my mid sixties until now at 68, the list of immobility problems had become very annoying. So, this improvement is is most exciting! My thanks to Teraputics Pure Life for making an excellent product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 16, 2020
D
Verified Purchase
Debra D.
Carnegie, US
★★★★★ 5
Great Product
I purchased "Magnesium L Threonate, Magtein™, Brain Supplement for Memory, Focus, Sleep and Cognitive Support". I added this to my evening regimen and my difficulty getting a full nights sleep gradually started to improve. I am waking up feeling refreshed now. No more mid morning slump. These improvements alone are well worth the cost. This improvement is is most exciting! My thanks to Teraputics Pure Life for making an excellent product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
K
Verified Purchase
Kevin McDermott
Phoenix, US
★★★★★ 5
It Put Me On An Even Plane.
After 2 months of using this supplement my sleep has improved immensely. I wake up refreshed and recharged Jitters have subsided. And bathroom trips are on a schedule.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
K
Verified Purchase
Kasea
Waukegan, US
★★★★★ 4
Helps Sleep
First bottle I could tell a huge difference in my sleep, second bottle seems I seem to be struggling with sleep. Will finish and update review
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Reviewed in the United States on May 27, 2026
R
Verified Purchase
Rose
Cuba, US
★★★★★ 5
Good
Good product
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Reviewed in the United States on April 26, 2026

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