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Smartwares RM218 Rookmelder Set 3 Stuks WitZorg ervoor dat je op tijd kan handelen als er brand uitbreekt dankzij de Smartwares s rookmelder set. De rookmelder heeft een gentegreerde batterij met een levensduur van 10 jaar zodat je de batterij niet tussendoor hoeft te vervangen. Het luide alarm van 85 dB kan levensbedreigende situaties voorkomen. Een rookmelder redt levens Een brand kan zomaar ontstaan, ook midden in de nacht terwijl je slaapt. De giftige rook zorgt ervoor dat je bewusteloos
Zorg ervoor dat je op tijd kan handelen als er brand uitbreekt dankzij de Smartwares s rookmelder set. De rookmelder heeft een geïntegreerde batterij met een levensduur van 10 jaar zodat je de batterij niet tussendoor hoeft te vervangen. Het luide alarm van 85 dB kan levensbedreigende situaties voorkomen.Een rookmelder redt levensEen brand kan zomaar ontstaan, ook midden in de nacht terwijl je slaapt. De giftige rook zorgt ervoor dat je bewusteloos kan raken en niet wakker wordt. Het is daarom belangrijk om ervoor te zorgen dat je op tijd wakker wordt als er brand uitbreekt. Het ophangen van rookmelders zorgt ervoor dat je gewaarschuwd wordt en snel kunt handelen in levensbedreigende situaties. Veel mensen weten niet dat een rookmelder maximaal 10 jaar meegaat. Check daarom de datum op je rookmelders zodat je om de 10 jaar een nieuwe aanschaft en altijd goedwerkende rookmelders in huis hebt.Kies een goede rookmelder
De rookmelders van Smartwares maken allemaal gebruik van een optische sensor. Een optische sensor reageert snel op smeulbranden, geeft minder vaak een vals alarm en is milieuvriendelijk. De batterij van de RM218 Rookmelder heeft een levensduur van 10 jaar waardoor je je geen zorgen hoeft te maken over het vervangen van de batterijen. De rookmelder is uitgerust met een slaap- en pauzestand. De slaapstand kan gebruikt worden om de rookmelder tijdelijk uit te schakelen, dit is bijvoorbeeld handig als de batterij midden in de nacht bijna leeg is en je de waarschuwingstoon tijdelijk uit wil zetten. Daarnaast kan de pauzeknop gebruikt worden als er sprake is van vals alarm.Installatie
Om er zeker van te zijn dat je bij brand tijdig gewaarschuwd wordt, wordt aangeraden om op iedere verdieping tenminste één rookmelder te plaatsen. We raden aan om in elke ruimte waar je door moet gaan als je moet vluchten, te voorzien van een rookmelder, zoals een gang, overloop of trap. Rook stijgt op en daarom is het belangrijk om de rookmelders altijd aan het plafond te bevestigen. Dit kan eenvoudig met een bevestigingsplaat of enkele schroeven. De Smartwares rookmelders zijn draadloos waardoor ze gemakkelijk overal in huis te plaatsen zijn. Door de beveiligingspin kan de rookmelder alleen gemonteerd worden als er een batterij in zit.Onderhoud
De werking van een rookmelder kan verminderd worden door stof en vuil. Het is daarom belangrijk om je rookmelder maandelijks schoon te maken met een licht vochtige doek en halfjaarlijks met een stofzuiger. Gebruik echter nooit schoonmaakproducten en beschilder de rookmelder niet.Testen
Het is belangrijk om de rookmelder tussendoor te testen door de testknop kort ingedrukt te houden. Door de rookmelder maandelijks te testen weet je zeker dat deze goed functioneert wanneer er brand uitbreekt. Als de batterij bijna leeg is laat de rookmelder een korte pieptoon horen, vervang dan de rookmelder door een nieuw exemplaar.Inhoud van de verpakking:
3 rookmelders, geïntegreerde batterij, handleiding, montagemateriaalFeatures:
- Bescherm jezelf en je familie door tijdig te kunnen handelen bij brand
- Rookmelder met geïntegreerde batterij van 10 jaar waardoor je tussentijds de batterij niet hoeft te verwisselen
- De rookmelder is uitgerust met testknop en daardoor eenvoudig te testen
- Lege batterij indicator zodat je weet wanneer de batterij verwisseld moet worden
- Eenvoudig te monteren en schoon te houden
- 3 stuks
Technische details
- Detector type: Foto-electrische reflectie detector
- Connectiviteitstechnologie: Draadloos
- Kleur van het product: Wit
- Beste gebruik: Thuis
- Test knop: Ja
- Pauzefunctie: Ja
- Materiaal behuizing: Kunststof
- LED-indicatoren: Ja
- Alarm decibels: 85 dB
- Montagewijze: Opbouwmontage
- Aantal: 1
- Gemakkelijk te installeren: Ja
- Stroombron: Batterij/Accu
- Ingangsspanning: 230 V
- Accu/Batterij voltage: 3 V
- Levensduur batterij/accu: 10 jaar
- Batterij bijna leeg-indicatie: Ja
- Ondersteund aantal accu's/batterijen: 3
- Temperatuur, in bedrijf: 4 - 40 °C
- Relatieve luchtvochtigheid, in bedrijf: 25 - 85 procent
- Inclusief schroeven: Ja
- Batterijen meegeleverd: Ja
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4.0 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Properly intellectual, and both demanding and rewarding as such
Format: Paperback
Anyone who plans to read this book is likely to know its premise already, so, I will not spend time or effort to recap it. All I can say is that the way the book is more eloquent, is altogether smarter, and more beautifully written than I expected. This is a true intellectual treat written with proper intellectual verve. So, no conspiracy theorists, or the simpleton believers in ancient aliens need not apply. If, however, you achieved a proper academic attainment - got your Masters or PhD and enjoy intellectual stimulation, this is a rare gem, to be digested slowly and deliberately, as no similar book is to be encountered any time soon. In other words, just a great book, presenting fascinating thoughts. It does not need anyone’s endorsement, as it is already a well-known entity within its field, yet, here it is – very heartily recommend!
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Reviewed in the United States on June 5, 2017
★★★★★ 5
Get it before it goes back out of print!
Format: Paperback
This book sat on my wish list for years while the price hovered just a bit too high for my liking. My patience has been rewarded with a back in print price that makes getting it a no-brainer. That said, I can't say I believe the main theory of this book, but it is a good start and an enjoyable read regardless. It seems to me that authors feel a need to propound an overarching and impossible-to-prove theory, in order to write some comparative mythology. I was brought to this book a long time ago after reading Charles Hapgood's Map of ancient Sea Kings. Another good author in the same vein is Gavin White, who wrote Babalonian Star Lore and several others.
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Reviewed in the United States on February 16, 2018
★★★★★ 5
I'm rereading the book. It's great!
The idea of progress is a relatively knew idea within the history of humans. The idea of progress is fundamental to the ideas of Capitalism and economic growth. Many Americans blindly believe that of progress, economic growth, and Capitalism are leading to the betterment of humans. If one carefully reads the IPCC's Fifth Assessment Report, it states that CO2 (and other greenhouse gasses) emissions are driving global warming and thus climate change. That report also says that economic growth and population growth are driving those emissions.
Climate change is one of the "progress traps" Wright is talking about. Progress does not inexorably lead to the betterment of humans. Nor do growth economies, including Capitalism. Wright helps readers see the big pictures of how humans have interacted with the Earth in ways that destroy civilizations and threatens to ruin our host, Earth.
The Myth of Progress by Tom Wessells is another good book about progress.
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Reviewed in the United States on December 24, 2018
★★★★★ 4
Each time history repeats itself, the price goes up
What is the difference between our 21st century global civilization, the ancient Sumerians, the Easter Islanders of Cook's day, empirical Rome, or the Maya civilization. Answer, not much. The last four are all societies that had their heyday, become stuck in a paradigm, and then brought ecological disaster on themselves via overpopulation and over exploitation of natural resources. "Each time history repeats itself, the price goes up", Wrights quotes from some pertinent graffiti. The cost this time could be in the billions of souls.
This a short book 132 pages of actual text with another 68 or so of footnotes at the end. It is a mad rush through human history exploring the collapse of those civilizations and a couple that have been more sustainable.
Wright also explores the traps of progress. That is mankind becomes so good at hunting he drives his food source into extinction. Then we become so proficient at an irrigation technology we ruin the land. We become so good at weapons we create bombs that could ruin the whole world. As a race, he contends, we seem to push every technology to the brink, to our collective woe.
I read with highlighter in hand. I had to restrain myself for marking whole long sections. As it is, the book now has a pink glow. Several pages have yellow tabs so I can find passages easily again. One such passage from the book summarizes it for me:
"The human inability to foresee - or to watch out for - long-range consequences may be inherent to our kind, shaped by the millions of years when we lived from hand to mouth by hunting and gathering. It may also be little more than a mix of inertia, greed, and foolishness encouraged by the shape of the social pyramid. The concentration of power at the top of large-scale societies gives the elite a vested interest in the status quo; they continue to prosper in darkening times long after the environment and general populace begin to suffer."
I remember as a biology major we studied the boom and bust cycle of animal populations. It was suggested in class that the human animal could follow the same cycle. The professor dismissed the idea, but not so Wright. He sees us at the high point in a few years, then the collapse unless we act now.
One other passage really struck home with me: "The idea that the world must be run by the stock market is as mad as any other fundamentalist delusion, Islamic, Christian, or Marxist." That tears at the very sand we have our society built on.
The sheer pace of Wright's march through history mirrors the author's urgency about how long we have to act to save our society. The countdown has already begun. The question remains, do we have the gumption to take the necessary action.
The book is at its heart liberal, and rightly so. Any possible solution to forestall the potential social collapse will not be from the top of the pyramid. They long ago seemed to have forgotten the concept of usufruct; we are just borrowing this planet from our children and grandchildren. Wright holds out a glimmer of hope, but the candle is flickering.
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Reviewed in the United States on January 21, 2010
★★★★★ 5
A short book loaded with sharp insights
Every year, Canadians eagerly huddle around their radios to listen to the Massey Lectures, broadcast by the CBC. For the 2004 season, Ronald Wright was the honored speaker. He presented a series of five lectures, titled A Short History of Progress. In 2005, Wright's presentation was published as a short book, and it became a bestseller. Martin Scorsese's movie, Surviving Progress, was based on the book.
It was an amazing success for a story contrary to our most holy cultural myths. Wright believed that the benefits of progress were highly overrated, because of their huge costs. Indeed, progress was approaching the point of becoming a serious threat to the existence of humankind. "This new century will not grow very old before we enter an age of chaos and collapse that will dwarf all the dark ages in our past."
He pointed out that the world was dotted with the ruins of ancient crash sites, civilizations that self-destructed. At each of these wrecks, modern science can, in essence, retrieve the "black box," and discover why the mighty society crashed and burned. There is a clear pattern. Each one crashed because it destroyed what it depended on for its survival.
Wright takes us on a quick tour of the collapse of Sumer, Easter Island, the Roman Empire, and the Mayans. He explains why the two oddballs, China and Egypt, are taking longer than average to self-destruct. The fatal defects of agriculture and civilization are old news for the folks who have been paying attention. It has become customary for these folks to believe that "The Fall" took place when humans began to domesticate plants and animals.
Wright thinks the truth is more complicated. What makes this book unique and provocative is his notion of progress traps. The benefits of innovation often encourage society to live in a new way, while burning the bridges behind them as they advance. Society can find itself trapped in an unsustainable way of living, and it's no longer possible to just turn around and painlessly return to a simpler mode. Like today, we know that the temporary bubble of cheap energy is about over, and our entire way of life is dependent on cheap energy. We're trapped.
Some types of progress do not disrupt the balance of the ecosystem, like using a rock to crack nuts. But our ability to stand upright freed our hands for working with tools and weapons, which launched a million year process of experimentation and innovation that gradually snowballed over time.
We tend to assume that during the long era of hunting and gathering our ancestors were as mindful as the few hunting cultures that managed to survive on the fringes into the twentieth century. But in earlier eras, when big game was abundant, wise stewardship was not mandatory. Sloppy tribes could survive -- for a while.
Before they got horses, Indians of the American west would drive herds of buffalo off cliffs, killing many at a time. They took what they needed, and left the rest for legions of scavengers. One site in Colorado contained the carcasses of 152 buffalo. A trader in the northern Rockies witnessed about 250 buffalo being killed at one time. Wright mentioned two Upper Paleolithic sites I had not heard of -- 1,000 mammoth skeletons were found at Piedmont in the Czech Republic, and the remains of over 100,000 horses were found at Solutré in France.
Over time, progress perfected our hunting systems. Our supply of high-quality food seemed to be infinite. It was our first experience of prosperity and leisure. Folks had time to take their paint sets into caves and do gorgeous portraits of the animals they lived with, venerated, killed, and ate.
Naturally, our population grew. More babies grew up to be hunters, and the availability of game eventually decreased. The grand era of cave painting ended, and we began hunting rabbits. We depleted species after species, unconsciously gliding into our first serious progress trap.
Some groups scrambled to find alternatives, foraging around beaches, estuaries, wetlands, and bogs. Some learned how to reap the tiny seeds of wild grasses. By and by, the end of the hunting way of life came into view, about 10,000 years ago. "They lived high for a while, then starved."
Having destroyed the abundant game, it was impossible to return to simpler living. This was a progress trap, and it led directly into a far more dangerous progress trap, the domestication of plants and animals. Agriculture and civilization were accidents, and they threw open the gateway to 10,000 years of monotony, drudgery, misery, and ecocide. Wright says that civilization is a pyramid scheme; we live today at the expense of those who come after us.
For most of human history, the rate of progress was so slow that it was usually invisible. But the last six or seven generations have been blindsided by a typhoon of explosive change. Progress had a habit of giving birth to problems that could only be solved by more progress. Progress was the most diabolically wicked curse that you could ever imagine. Maybe we should turn it into an insulting obscenity: "progress you!"
Climate scientists have created models showing weather trends over the last 250,000 years, based on ice cores. Agriculture probably didn't start earlier because climate trends were unstable. Big swings could take place over the course of decades. In the last 10,000 years, the climate has been unusually stable. A return to instability will make civilization impossible.
Joseph Tainter studied how civilizations collapse, and he described three highways to disaster: the Runaway Train (out-of-control problems), the Dinosaur (indifference to dangers), and the House of Cards (irreversible disintegration). He predicted that the next collapse would be global in scale.
Finally, the solution: "The reform that is needed is... simply the transition from short-term thinking to long-term." Can we do it?
We are quite clever, but seldom wise, according to Wright. Ordinary animals, like our ancestors, had no need for long-term thinking, because life was always lived in the here and now. "Free Beer Tomorrow" reads the flashing neon sign on the tavern, but we never exist in tomorrow.
The great news is that we now possess a mountain of black boxes. For the first time in the human journey, a growing number of people comprehend our great mistakes, and are capable of envisioning a new path that eventually abandons our embarrassing boo-boos forever. All the old barriers to wisdom and healing have been swept away (in theory).
Everywhere you look these days; people are stumbling around staring at tiny screens and furiously typing -- eagerly communicating with world experts, engaging in profound discussions, watching videos rich with illuminating information, and reading the works of green visionaries. It's a magnificent sight to behold -- the best is yet to come!
Richard Adrian Reese
Author of What Is Sustainable
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Reviewed in the United States on January 20, 2013