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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 |
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Exchange/Return Notes
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4.3 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Plato's view of the creation of the world
Format: Paperback
A cosmology is a narrative concerning the creation of the universe. Many ancient philosophers have written or elaborated this kind of work. The Platonic dialogue Timeus is an account of the work of the creator god (called the demiurge - or artisan) sculpting the chaotic material world in accordance with the immaterial model of the Ideas. But the text was written in a very hermetic and symbolic language, making its interpretation difficult or even impossible without the knowledge of the references and symbols used by Plato. This book is a complete translation of the text followed by a comprehensive commentary explaining in detail every passage. Francis MacDonald Cornford is one of the most important ancient philosophy scholars, and this work reveals his deep knowledge of Platonic and Greek thought. It is a must have for anyone interested in greek and Platonic philosophy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2008
★★★★★ 5
Joy restored!
Format: Paperback
Now, to be honest, I've been a John & Stasi Eldredge reader for a long time. I love their books and their writing styles. But more than their skills with language is their transparency and candor. If you get the chance to meet them, you'll see that who they are in person is just how they portray themselves in their books. They're honest. They're kind--both with themselves and with others and they're consistently dedicated to telling the truth--no hype. No bait and switch.
Now, to Defiant Joy. This is a book for those who have lost joy. This is a book for those who have been blinded to the subtle creep of disappointment and cynicism that has tragically become the filter through which they see life. Let's be honest. Life can really suck sometimes. And it's both understandable and inevitable that joy is harder and harder to find...much less experience. Stasi has lived enough life to understand that condition. She shares her own struggles and disappointments--all of which give her credibility when she invites her readers to consider seeking joy in the midst of less than joyful circumstances.
"Defiant Joy" is a fitting title for those who don't want to give up yet; who don't want to give in to resignation. And that's the invitation Stasi gently offers--there is another option beside resignation, cynicism, depression and disillusionment. Joy! Who would have thought?
Stasi writes like she talks. Reading her work is like sitting down with a good friend for an honest and frank conversation about what really matters. She's the kind of friend we all long to have--one who tells us what we need to hear instead of what we want to hear; one who tells us the truth, even when we've lost hope of ever finding it. You won't find any relativism or warm-fuzzy self-talk. This is not a self-help book. Stasi has suffered too much to offer simplistic answers to some of the most difficult questions.
I highly recommend this book. It's on my suggested reading list for the community I lead. Stasi is one battle-experienced traveler who's offering other weary travelers hope for the journey ahead. I'll bet money you'll discover joy again.
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Reviewed in the United States on January 18, 2019
★★★★★ 5
You can experience joy!
Format: Paperback, Format: Paperback
What is joy? How does it compare to happiness? From where does joy come? How can we experience joy every day despite the pain and sorrow that we all experience?
Stasi Eldredge writes honestly and poignantly from places of pain and sorrow in her own life - but doesn't leave us there. She leads us into hope, into beauty and into a new depth of life in God. She teaches us how to cultivate joy in really practical - and achievable - ways.
I was especially struck by her walking through St. Patrick's Breastplate - an ancient prayer - and how I can turn from a place of failure and shame based on my performance to the King and His character and hide myself in Him.
"I need mercy, and I know it. In that knowing comes a great gift. I turn my heart again to my kind and understanding God and confess to Him that I need mercy. His answer swamps my heart with a too-good-to-be-true reality that leads to a crumbling of hopelessness and shame. My self-loathing collapses into His love. My self-condemnation melts into His arms that welcome and soothe. I have blown it. The blowing now has become the wind of the Holy Spirit. Ruah is here. His breath shepherds my heart into my Father's, and there mercy triumphs over judgment."
I encourage you to read this book. God will use it to restore your soul, to bring water to your dry and weary soul, and to help you find rest in His strong arms. You will not feel condemned, but encouraged. I found hope in its pages.
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Reviewed in the United States on October 17, 2018
★★★★★ 5
Good
Format: Paperback
Good
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Reviewed in the United States on April 15, 2026
★★★★★ 4
Excellent, inspirational, challenging
Format: Kindle
Stasi doesn't just support her vision that God wants us live joyously with scripture, she acknowledges the challenges to that, the pain we experience in life, and then gives us practical advice for applying God's love through those times to become deeper, better, more loving individuals on the other side. I wish I had read this book before my Daddy was called home, but I guess I wouldn't have been the same person if I hadn't experienced that pain alone. Defiant Joy leads you beyond surface Christianity and challenges you to see God more closely.
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Reviewed in the United States on July 18, 2019