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Description
Dahua DHI-ARM320-W2(868) AirShield Draadloze Ingangs-expanderdetectorProductbeschrijving De Wireless Input Expander is een conversieapparaat dat detectoren van derden verbindt met Dahua Wireless Hub. Wanneer het alarm van de detector van derden wordt geactiveerd, stuurt de Expander het signaal via RF naar de Hub en meldt de Hub het vervolgens aan platforms. Verschillende alarmtypen kunnen worden geconfigureerd in de DMSS app, afhankelijk van de typen aangesloten detectoren. De expander heeft een triaxiale accelerometer
Productbeschrijving
De Wireless Input Expander is een conversieapparaat dat detectoren van derden verbindt met Dahua Wireless Hub. Wanneer het alarm van de detector van derden wordt geactiveerd, stuurt de Expander het signaal via RF naar de Hub en meldt de Hub het vervolgens aan platforms. Verschillende alarmtypen kunnen worden geconfigureerd in de DMSS-app, afhankelijk van de typen aangesloten detectoren. De expander heeft een triaxiale accelerometer om te voorkomen dat het apparaat beweegt. Er is ook een invoerkanaal om de sabotagepoort van de detectoren van derden aan te sluiten. De Expander wordt gevoed door droge batterijen en kan ook stroom leveren voor detectoren die erop zijn aangesloten.
Specificaties
| Alarmingang | 2 (1 voor alarm en 1 voor anti-manipulatie) |
| Hulpvermogen uitgang | 3,3 V, tot 10 mA |
| Knop | 1 × aan/uit-knop |
| Op afstand updaten | Cloud-update |
| Detectie van een lege batterij | Ja |
| Sabotage | Ja |
| Meetbereik (temperatuur) | –10 °C tot +55 °C (+14 °F tot +131 °F) (binnen) |
| Sensor | Triaxiale accelerometer |
| LED-indicator | 1 × groene alarmindicator |
| Scenario | Binnen |
| Bedrijfsstroom | 45 uA (met 1 min hartslag, normaal open modus, geen lading voor andere apparaten en alarm voor verplaatst apparaat niet ingeschakeld) |
| Alarmstroom | 50mA |
| Carrier Frequency | 868,0 MHz–868,6 MHz |
| Zendervermogen (EIRP) | Limiet 25 mW |
| Communicatiemechanisme | Tweerichtingsverkeer |
| Communicatie afstand | Tot 1600 m (5249,34 ft) in een open ruimte |
| Encryptiemodus | AES128 |
| Frequentieverspringing | Ja |
| Stroomvoorziening | 3 × CR123A-batterij |
| Batterijmodel | CR123A |
| Levensduur van de batterij | 5 jaar (4 jaar als het externe invoertype puls is) |
| Stroomverbruik | Max. 150 mW (zonder dat er stroom wordt geleverd aan andere apparaten) |
| Bedrijfstemperatuur | –10 °C tot +55 °C (+14 °F tot +131 °F) (binnen) |
| Bedrijfsvochtigheid | 10%–90% (RV) |
| Productafmetingen | 102 mm × 39 mm × 21,5 mm (4,02" × 1,54" × 0,85") |
| Netto gewicht | 77 gram (0,17 pond) |
| Brutogewicht | 135 gram (0,30 pond) |
| Installatie | Oppervlaktemontage of montage in een apparaat van derden |
| Certificeringen | CE EN 50131-1:2006+A1:2009+A2:2017+A3:2020 EN 50131-3:2009 EN 50131-6:2017+A1:2021 EN 50131-5-3:2017 Veiligheidsklasse 2 Milieuklasse II |
| Corrosiewerend niveau | Basisbescherming |
| Verpakkingsafmetingen | 95 mm × 43 mm × 139 mm (3,74" × 1,69" × 5,47") |
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4.0 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
OK book about hiking the Pacific Crest Trail.
Format: Paperback
I love books about people hiking the national trails. I thought this book was about the author's thru hike on the trail with his wife. Actually, this book had little to do with the Pacific Crest Trail and was mostly about the other hikers, their relationships, etc. It read like a fiction book, as the author often gave examples of conversations the other hikers had with other people, even when he wasn't around to hear them. He also gave examples of what they were thinking and even what the other hikers friends were thinking. There was no evidence of interviews, etc.
It is a very well written book, so I gave it four stars. If you like books about the relationships of thru hikers, especially their romances, I would recommend this book. But it reads more like a fiction book, in my opinion.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Walking from Mexico to Canada with a great cast of characters
Format: Paperback
I thoroughly enjoyed reading Journeys North. The story is about the Pacific Crest Trail and the people who hike it (thru-hikers) attempting to walk from Mexico to Canada. The author brings the trail to life across the story, but what really stands out is the story of the characters. You find yourself rooting for them as they encounter all kinds of challenges, and you get to know them through their backstory and past experiences that are shared. People attempt a thru-hike for many different reasons, and the story is enriched by their personal stories and histories that they carry with them each step of the way. Even their “trail names” had stories that often highlighted something about the characters themselves. One of the unique things about the book is the Pacific Crest Trail itself, as the author’s descriptions allow you to imagine what it looked like and felt like (including the aches, pains, and injuries along the way). The trail is ever present across this story of the people who walked it, bring them together, and then pulling them away from one other, sometimes for weeks or even months. The trail and mother nature create for an everchanging backdrop as the characters navigate their way north. I am not a thru-hiker and I doubt I would ever attempt to walk from Mexico to Canada, but I enjoyed tagging along on the adventure of Scout, Frodo, Blazer, Dalton, Tony, Nadine and many others whose lives intersected over the course of many miles. I found myself having a hard time putting the book down, particularly as the hikers neared the Canadian border. If you are looking for an armchair adventure along the PCT, or wondered what it would be like to tackle a thru-hike of a long trail, or are curious about the people who undertake such a challenge, you will enjoy Journeys North! I would imagine that if you are a PCT hiker you would find the book even more meaningful.
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Reviewed in the United States on August 4, 2020
★★★★★ 5
Incredible Life experience while hiking the PCT
Format: Paperback
As I began experiencing great stories about the "Camino" pilgrimage in Spain, books about "thru hikes" in the US seemed to find me too i.e. The Pacific Crest Trail, and did grab my attention for various reasons...
"Journeys North"-- To me, this story makes it more than apparent, that if you want to learn about yourself and open your "vault doors" so to speak, and free yourself of personal challenges-hiking the PCT could help. This book on it's own, is a wonderful treatise about the PCT, and taught me much about being open and honest with others to include oneself, and about being grateful."
This story "rings" of Freedom, is intense, and at times, raw. From the comfort of my living room... Frodo, Scout, Blazer, and company drug this old backpacker (me) a.k.a. "LightningLayne" along on a fantastic journey north clear from Mexico's northern border to Canada's southern one. Along the way, I noticed how the "goodness" in people replaces just about every negative the world throws in your face. Finally, I laughed, I cried, and even felt sorry at times for all the "participants." In the end, I was "grateful" for the individual and collective stories shared. This story is one that has burrowed in deep and is one I will never forget.
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Reviewed in the United States on February 2, 2021
★★★★★ 5
Now I want to hike the PCH!
Format: Paperback
Such an incredible story, actually several stories. Very inspirational. I can’t help but want to join the adventure and experience some trail magic of my own. Thank you for capturing these experiences, Scout. Well done
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Reviewed in the United States on November 25, 2025
★★★★★ 5
A community 3 feet wide and 2650 miles long
Format: Paperback
One of the aspects of long-distance backpacking on our National Scenic Trails that those who haven't done so are generally unaware of is the tight-knit sense of community that binds hikers together, even hikers who've never met. These folks are average people with a vast range of life experiences and circumstances, and not simply a generic array of "professional hikers" involved in some sort of athletic competition. In the "real world," you can know someone for years without *really* knowing them at all, but on the trail, a single day can feel like weeks, and months can feel like years. You can bump into someone in the morning, and have a new "old friend," soulmate, or savior by the end of the day.
In "Journeys North," Scout brings this community to life on the page vividly and emotionally, drawing us into not just his own life and experience, but of many others in his trail family- all making that journey north in a literal way collectively, as well as in their own personal ways figuratively. Along the way, he relates the highs and the lows of not just life on the trail, but of life in the "real world" as well. It's a crash course in empathy, determination, and sometimes just plain stubbornness.
When I received the book and flipped through it quickly, I was at first surprised at the lack of photos- just a single page at the end with a handful of shots of the "main characters." But as I read the book, I quickly realized that Scout's richly descriptive prose paints a far better picture than any actual pictures could, and was grateful for the space he made for my imagination to play a part in his story.
While no book could ever substitute for the actual experience of hiking a long trail, "Journeys North" serves as great inspiration for those who aspire to, as well as reassurance for their friends and family that they won't simply be disappearing into the wilderness alone.
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Reviewed in the United States on August 1, 2020