Dahua AirShield Wireless Smoke Detector — HY-SA21A-W2
SKU: DHI-HY-SA21A-W2
Custom-quoted & professionally installed. Contact us for a tailored quote.
Online checkout is for free pickup at 46 Baldwin St N, Whitby. We ship across Ontario; call before checkout so cost and timing can be confirmed.
Local warranty support. Something wrong? Walk it back in — no call centers.
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A wireless smoke detector that ties into the Dahua AirShield system. On smoke it sounds a loud local siren and signals the hub, so a fire event reaches you wherever you are — not just the people in the room. One button tests and silences it, the lithium cell is replaceable, and it is listed to the EN 14604 smoke-alarm standard. Supplied and fitted by Skyview.
Specifications
- Type: photoelectric (optical) smoke
- Local alarm: 85-90 dB(A) at 3 m plus visual LED
- RF band: 433.1-434.6 MHz (868 variant available)
- Comms: two-way, AES128, frequency hopping, range up to 1,000 m
- Power: 3 V CR123A lithium, replaceable; battery life ~3 yr
- Controls: single-button test / silence
- Dimensions: 98 mm dia x 43.1 mm; weight 140 g
- Certification: TUV + CE, EN 14604:2005+AC:2008
Part of the Dahua AirShield wireless alarm range. Sourced to order, designed, installed and supported locally by Skyview Electronics from our Whitby shop at 46 Baldwin St N. Contact us for current pricing and a system quote.
Verified details
What you can confirm before you order
Everything below is pulled from the live Woo listing or Skyview's catalog. If a detail is not published yet, we say so instead of guessing.
Listing facts
Price
Contact us for pricing
Stock
In stock
SKU
DHI-HY-SA21A-W2
Category
Alarm Systems
Specs from the live listing
- A wireless smoke detector that ties into the Dahua AirShield system.
- On smoke it sounds a loud local siren and signals the hub, so a fire event reaches you wherever you are — not just the people in the room.
- One button tests and silences it, the lithium cell is replaceable, and it is listed to the EN 14604 smoke-alarm standard.
- Supplied and fitted by Skyview.
Compatibility and fit
Best fit for alarm systems. Match the model number or SKU on the device you already own before ordering, especially for cables, chargers, storage, and camera/network gear.
- Send us the model number if you want us to verify the fit first.
- For installs, pairing, or accessories, we can confirm the right match before you pay.
Warranty and support
Local warranty support is handled here in Whitby. If something arrives wrong, fails too early, or needs a quick check-in, you can bring it back to us instead of dealing with a call center.
Quote before checkout
This listing is quote-only. We need to confirm stock, fit, or install scope before a final price is set. Once that is confirmed, we can move the order forward.