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Description
Dahua DHI-ARA12-W2(868) AirShield Draadloze Internal SirenProductbeschrijving De Dahua ARA12 W2(868) AirShield Wireless Internal Siren is een waardevolle aanvulling op elk beveiligingssysteem voor thuis of op het werk. Deze draadloze sirene biedt een gemakkelijke installatie, een luid alarm ter afschrikking en betrouwbare prestaties met functies zoals signaalsterktedetectie en automatische updates. Met zijn gebruiksgemak en effectiviteit biedt deze interne sirene een extra laag beveiliging en gemoedsrust.
Productbeschrijving
De Dahua ARA12-W2(868) AirShield Wireless Internal Siren is een waardevolle aanvulling op elk beveiligingssysteem voor thuis of op het werk. Deze draadloze sirene biedt een gemakkelijke installatie, een luid alarm ter afschrikking en betrouwbare prestaties met functies zoals signaalsterktedetectie en automatische updates. Met zijn gebruiksgemak en effectiviteit biedt deze interne sirene een extra laag beveiliging en gemoedsrust.
Specificaties
| Indicatielampje | 1 × groene alarmindicator |
| Knop | 1 × aan/uit-knop |
| Sabotage alarm | Ja |
| Op afstand upgraden | Cloud-update |
| Testmodus | Ja |
| Alarm voor lage batterij | Ja |
| Zoekopdracht | Detectie van signaalsterkte |
| Carrier Frequency | 868,0 MHz–868,6 MHz |
| Zendervermogen (EIRP) | Limiet 25 mW |
| Communicatie afstand | Tot 1.000 m (3.280,84 ft) in een open ruimte |
| Communicatiemechanisme | Tweerichtingsverkeer |
| Frequentieverspringing | Ja |
| Encryptiemodus | AES128 |
| Stroomvoorziening | 2 × CR123A-batterijen |
| Stroomverbruik | Max. 240 mW |
| Bedrijfstemperatuur | –10 °C tot +55 °C (+14 °F tot +131 °F) (binnen) |
| Bedrijfsvochtigheid | 10%–90% (RV). |
| Productafmetingen | 81,0 mm × 81,0 mm × 26,0 mm (3,19" × 3,19" × 1,02") (L × B × H) |
| Verpakkingsafmetingen | 135,0 mm × 98,5 mm × 56,8 mm (5,31" × 3,88" × 2,24") (L × B × H) |
| Installatie | Beugelbevestiging |
| Netto gewicht | 105 gram (0,23 pond) |
| Brutogewicht | 175 gram (0,39 pond) |
| Certificeringen | CE EN 50131-1:2006+A1:2009+A2:2017+A3:2020 EN 50131-4:2019 EN 50131-6:2017 EN 50131-5-3:2017 Veiligheidsklasse 2 Milieuklasse II |
| Levensduur van de batterij | 2,5 jaar in werkende status (twee keer per week geactiveerd en waarschuwingen van 120 seconden voor elke activering) |
| Geluidsdruk | Volume hoog 84 db (A )1 m Volume gemiddeld 78 dB (A)1 m |
| Behuizing | PC + ABS |
| Meetbereik | –15 °C tot +65 °C (+18,8 °F tot +149 °F) (binnen) |
| Precisie meten | ± 1 °C (± 33,8 °F) |
| Resolution | 1 °C (33,8 °F) |
| Volume aanpassen | 3 volumeniveaus |
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
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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
4.3 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
good deal
Very inexpensive way to take melatonin
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Perfect for low dose, great price
On my second bottle, great product for the cheap price, lasts almost a year. Hard to find in this low dose. I personally find low dose melatonin to work better than the higher amounts. It’s the sweet spot.
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Reviewed in the United States on October 19, 2025
★★★★★ 5
Knocks me out cold
I wish I could easily find a lower dose, but this works.
Take one about 30 mins before I want to sleep and when I fall asleep I don't wake up in the middle of the night. I normally have insomnia but one of these generally gives me 9 hours of sleep.
It doesn't ALWAYS work (I have health problems that can keep me awake) but instead of 5-7 hours sleep I am consistently getting around 9.
The only problem is I'm groggy in the morning. But I feel a lot less haggard and anxious in the morning now so I think I'll be continuing with this.
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Reviewed in the United States on June 12, 2025
★★★★★ 5
Very good product
These melatonin pills work. I bought them because sometimes I'm so stressed or pressured by everyday life that I find it hard to fall asleep. I don't use them every day, only when I really can't sleep and it's very late. I must say that this pill doesn't knock you out completely. I liked that. You fall asleep slowly, and the next day you don't feel groggy or like you've had too much to drink. It's a great product!
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Reviewed in the United States on September 7, 2025
★★★★★ 4
A Game-Changer for Sleep Disorders - Genuine Experience
I wanted to share my personal journey with Melatonin and how it has significantly improved my struggle with sleep disorders, specifically delayed sleep phase. Please note that this review is completely unbiased and I have received no compensation or free products for writing this.
Living with delayed sleep phase has been incredibly challenging. I've tried various methods to reset my sleep schedule, but none seemed to offer a lasting solution. That's when I decided to give Melatonin a shot after hearing positive feedback from others.
From the very first night, I noticed a difference. Taking Melatonin about 30 minutes before my desired bedtime helped me feel drowsy and ready for sleep. It wasn't a magic solution, and it took some time to fully adjust my sleep pattern, but Melatonin was a crucial aid in that process.
What I appreciate about Melatonin is that it felt natural and non-intrusive. It didn't knock me out; rather, it gently guided my body into a state of relaxation conducive to sleep. Over a few weeks of consistent use, I noticed that I was falling asleep earlier and waking up feeling more refreshed.
I want to stress that I purchased Melatonin on my own accord, and I'm sharing this review solely based on my experience. This isn't a paid review, and I didn't receive any free samples. My improvement in sleep quality is a testament to the product's effectiveness.
If you're struggling with sleep disorders like delayed sleep phase, I encourage you to explore Melatonin as an option. Of course, it's always wise to consult with a healthcare professional before introducing any new supplement into your routine. In my case, Melatonin has been a game-changer, and I'm grateful to have found a solution that aligns with my goal of achieving a healthier sleep schedule.
In conclusion, Melatonin has played a significant role in helping me manage my sleep disorder. It's not a one-size-fits-all solution, but it's certainly worth considering if you're seeking a natural way to regulate your sleep patterns. My experience is genuine, and I hope others find the relief they're seeking through Melatonin as well.
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Reviewed in the United States on August 18, 2023