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Description
Dahua DHI-HY-SA21A-W2(868) AirShield Draadloze RookmelderProductbeschrijving Dahua Wireless Smoke Alarm biedt batterijgevoede rookdetectie en alarmfuncties in n unit. Geavanceerde elektronica in combinatie met een foto elektrische rookdetectiekamer zorgen voor vroege detectie van rook en hoge immuniteit tegen ongewenste alarmen. Dit soort rookmelder heeft geen netvoeding nodig en is geschikt voor algemene residentile toepassingen. Tijdige melding van de rookmelder kan in realtime worden weergegeven op de
Productbeschrijving
Dahua Wireless Smoke Alarm biedt batterijgevoede rookdetectie en alarmfuncties in één unit. Geavanceerde elektronica in combinatie met een foto-elektrische rookdetectiekamer zorgen voor vroege detectie van rook en hoge immuniteit tegen ongewenste alarmen. Dit soort rookmelder heeft geen netvoeding nodig en is geschikt voor algemene residentiële toepassingen. Tijdige melding van de rookmelder kan in realtime worden weergegeven op de DMSS-app.
Specificaties
| Verzamelingstype | Rook |
| Bemonsteringsperiode | 10 seconden |
| Sensor Type | Photoelectric |
| Alarmtype | Rookmelder, storingswaarschuwing, waarschuwing voor lege batterij |
| Alarmvolume | 85dB–90dB(A) op 3 m (9,84 ft) |
| Alarmmodus | Visueel en hoorbaar alarm |
| Stiltefunctie | Ja |
| Stilteduur | Ongeveer 12 min |
| Alarmresponsdrempel | 0,2 dB/m2 - 0,3 dB/m2 |
| Indicatielampje | Rode en groene LED-indicator |
| Led-instructies | Stand-by: Groene indicator knippert eenmaal per minuut Alarm: Rode indicator knippert eenmaal per seconde Storing: Rode indicator knippert eenmaal per minuut Waarschuwing voor lage batterij: rode indicator knippert eenmaal per minuut |
| Dekkingsgebied | Wanneer de hoogte van de ruimte minder dan 8 m (26,25 ft) bedraagt, bedraagt het beschermingsgebied van een apparaat 20 m 2 -40 m 2 |
| Levensduur van de batterij | 3 jaar |
| Bedrijfsspanning | 3V CR123A lithiumbatterij (vervangbaar) |
| Bedrijfsstroom | Bewakingsstroom: ≤ 35uA Alarmstroom: ≤ 35mA |
| Bedrijfsomgeving | Binnen |
| Bedrijfstemperatuur | -10°C tot +55°C (+14°F tot +131°F) |
| Bedrijfsvochtigheid | ≤ 95% RV (niet condenserend) |
| Kleur | Wit |
| Behuizing | ABS |
| Afmetingen | φ98mm × H43,1mm (φ3,85" × H1,70") |
| Gewicht | 140 gram (0,30 pond) |
| Installatie | Plafondmontage |
| Certificeringen | TÜV en CE-gecertificeerd |
| Nalevingsnorm | EN 14604:2005+AC:2008 |
| Draaggolffrequentie | 868 MHz–868,3 MHz |
| Communicatie afstand | Tot 1000 m (3280,84 ft) in een open ruimte |
| Communicatiemechanisme | Tweerichtingsverkeer |
| Frequentieverspringing | Ja |
| Encryptiemodus | AES128 |
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 2445 reviews
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Product Reviews
★★★★★ 5
Easy to install, very tough!
Color: White, Size: 16in, Color: White, Size: 16in
Seriously, scoring these shelf stands for $30 feels like an absolute steal! Four chunky wood boards with metal T-brackets that actually feel substantial - way sturdier than those flimsy IKEA ones I used to have. My old cheapo stands warped after half a year, but these hold up like a champ - I've got like 15 heavy textbooks stacked on them right now.
Love the little details too: rounded edges so you won't scrape your hands, and rubber grip strips on the bottom. They look legit fancy in my living room as bookshelves and even class up my kitchen herb garden. My friend thought they were some high-end designer furniture! Honestly, the craftsmanship at this price puts my old $60 wooden shelves to shame. Already told my DIY group chat about these - trust me, you can't go wrong!
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Reviewed in the United States on March 13, 2025
★★★★★ 4
Great look. Sturdy.
Color: Rustic Brwon, Size: 16in
Great look if you can get it installed. The sticker paper mounting guides rip so easy so he careful!
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Reviewed in the United States on October 4, 2025
★★★★★ 1
Worst item ever
Color: White, Size: 16in
Set up shelves and not sturdy at all. Followed the instructions perfectly. Very poorly made. I don’t have the box and now I’m stuck with the item.
Garbage can here it comes.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Shelves
Color: Rustic Brwon, Size: 16in
Love the quality but got the wrong color. Company was easy to work with in return. If you need shelving these are awesome
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Reviewed in the United States on March 31, 2026
★★★★★ 3
There are better floating shelves
Color: Rustic Brwon, Size: 16in
Doesn’t feel very sturdy like other floating shelves I’ve bought, and they slant a little. The anchors and screws that it came with all broke so we had to get our own for it to feel more secure on the wall, but still feels wobbly. Overall, it looks good on the wall after the fact, but won’t be adding too much weight on it.
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Reviewed in the United States on May 23, 2026