If you bought the ladder you should buy two or three of these smoke alarm packs for your first ladder adventure.
[QUOTE=GiancarloPoli, post:47, topic:302901]
LOL I think its funny.. “Wireless Smoke Alarm” hahaha i never heard of a wired smoke alarm? it makes sense that they exist? but cmon? have you ever heard of anything BUT a wireless smoke alarm? the whole idea is to know where the fire is located!!! if all the alarms ring how do you know which way to run??? hmmm… just my thoughts.
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I just re-read your comment, and am still confused. Are you questioning that there are wired smoke detectors? Yes, such detectors exist.
Many industrial smoke detectors don’t rely on batteries because changing so many batteries is a hassle. So they draw power off the main power lines. So yes, they’re wired. There are even home smoke detectors that don’t use batteries. They’re screwed into incandescent bulb fixtures. See photo below. In fact, they were sold by Woot this year.
Secondly, many larger houses and mansions have a wired version of these OneLinks. Instead of sending signals wireless through the air, data travels through electrical wiring behind the wall. The data includes detector status and which detector was triggered during an alarm. Unlike these OneLinks, hardwired smoke detectors cannot be easily moved.
[QUOTE=sdc100, post:62, topic:302901]
I just re-read your comment, and am still confused. Are you questioning that there are wired smoke detectors? Yes, such detectors exist.
Many industrial smoke detectors don’t rely on batteries because changing so many batteries is a hassle. So they draw power off the main power lines. So yes, they’re wired. There are even home smoke detectors that don’t use batteries. They’re screwed into incandescent bulb fixtures. See photo below. In fact, they were sold by Woot this year.
I have a condo that has a hard wired detector… It’s great until the power goes out…THEN WHAT? Lamp fire? Candle fire? Fireplace Fire? … U need a battery back up!
Does anyone know if they tech here actually reduces false alarms? We have vaulted ceilings in the room with our wood stove. During winter, we keep a big broom right under the alarm to whisk away all of our false alarms. Would consider this if it actually helps reduce that problem.
Great, so if I buy these then I have to smash ALL the fire detectors in my house because when one goes off they ALL go off.
No deal.
They’re pretty common in home environments, especially in kitchens, attics and basements. Quick burning fires can results from the burning of paper (books/newspapers and cardboard boxes in dens, libraries, living room) and flammable liquids (oil in the kitchen, chemicals in the basement like thinner and solvents).
Aside from the type of smoke, there are also practical differences between the two. In general, ionization sensors die first. The tiny amount of Americium used in the sensors lose their radioactivity in about 7 years so the entire detector needs to be replaced. By coincidence, a lithium battery in these detectors also lasts about 7 years so it’s pretty convenient. No more battery changes.
On the other hand, the photoelectric sensor are more prone to getting dirty. Accumulated grime can affect the accuracy by affecting the amount of light getting through.
Ionization detectors are by far more popular. An ideal unit would have both types of sensors.
Huh? What you’re forgetting is that when you reset the triggered detector, all the other detectors are reset as well.
Great, just what I needed for my tent.
[QUOTE=j3snyder, post:64, topic:302901]
Does anyone know if they tech here actually reduces false alarms? We have vaulted ceilings in the room with our wood stove. During winter, we keep a big broom right under the alarm to whisk away all of our false alarms. Would consider this if it actually helps reduce that problem.
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Read this Canadian report, Are photoelectric smoke alarms better than ionization smoke alarms for “adjacent to kitchen” installations, to minimize nuisance alarms?, first posted by MikeFarina.
[QUOTE=hero12]
[QUOTE=sdc100, post:63, topic:302901, post:62, topic:302901]
I just re-read your comment, and am still confused. Are you questioning that there are wired smoke detectors? Yes, such detectors exist.
Many industrial smoke detectors don’t rely on batteries because changing so many batteries is a hassle. So they draw power off the main power lines. So yes, they’re wired. There are even home smoke detectors that don’t use batteries. They’re screwed into incandescent bulb fixtures. See photo below. In fact, they were sold by Woot this year.
I have a condo that has a hard wired detector… It’s great until the power goes out…THEN WHAT? Lamp fire? Candle fire? Fireplace Fire? … U need a battery back up!
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I don’t know about the one you have but some hardwired detectors have a built-in rechargeable battery. It takes over when the main power is cut, just like your laptop battery does when it’s unplugged. The Dupont lightbulb smoke detector that I showed before goes to battery power whenever you turn off the light.
[QUOTE=mRosi6600, post:28, topic:302901]
As a firefighter, I recommend these ONELINK models. Placing one on each division of your home (including your attic!) is a great idea.
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Great idea, but not very practical because the normal summer attic temperatures here in Texas kill the batteries (including lithium) in short order. Plus attic temperatures easily range above or below the manufactures operating temperature specification during many months of the year.
[QUOTE=GiancarloPoli, post:47, topic:302901]
LOL I think its funny.. “Wireless Smoke Alarm” hahaha i never heard of a wired smoke alarm? it makes sense that they exist? but cmon? have you ever heard of anything BUT a wireless smoke alarm? the whole idea is to know where the fire is located!!! if all the alarms ring how do you know which way to run??? hmmm… just my thoughts.
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First Alert makes several wired smoke detectors, including one that is identical to this one except that it’s not wireless. So there. 
The idea was to have all the alarms sound if one detected smoke. Primitive, but not as primitive as relying on hearing the one in the basement go off while asleep upstairs.
These units allow for wall mounting, so you might be able to place them just below the vaulted parts of the ceilings.
[QUOTE=AerodexdotCom, post:71, topic:302901]
Great idea, but not very practical because the normal summer attic temperatures here in Texas kill the batteries (including lithium) in short order. Plus attic temperatures easily range above or below the manufactures operating temperature specification during many months of the year.
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Yeah, but when it’s working, it can save your life. I’d rather have something working half the time than nothing at all. Furthermore, going out of the optimal temperature range doesn’t mean that it won’t work. There are two easy solutions for extreme temperatures:
- Go to Radio Shack and buy a 2-AA battery holder. Attach long wires to the battery connectors in the detectors, paying attention to which wire is attached to + and -. Attach the other ends to the battery holder, making sure +/- match the detector. Mount the smoke detector in the attic and put the battery pack in a separate cooler room.
http://equipment.static.tradepad.net/193/192597.jpg
- Buy a wired OneLink model (SA521CN-3ST) just for the attic, and integrate it into your wireless OneLink system.
[QUOTE=pixiedee55, post:55, topic:302901]
Bought 3 2 packs last time they were sold. Have two in the basement, three on the main floor, and one upstairs. Had a small dryer fire in the basement and was alerted very quickly…no damage (except the dryer of course) since the smoke alarm voice told me exactly where the smoke was coming from. These are invaluable! Very easy to program and install.
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I was going to post that I wouldn’t trust a “these work great for me” review until someone gave one that actually included a fire. You fit the bill.
[QUOTE=peterncats, post:42, topic:302901]
Is there any real reason to get CO detectors if your house, like mine, has electric baseboard heat, everything else is also electric, there’s not even a gas line available. Where would a CO source be in such a situation that this detector would not have already detected (such as an already existing fire…)?
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From First Alert, which makes both types of detectors:
"All First Alert® Smoke Alarms conform to regulatory requirements, including UL217 and are designed to detect particles of combustion. Smoke particles of varying number and size are produced in all fires.
Ionization technology is generally more sensitive than photoelectric technology at detecting small particles, which tend to be produced in greater amounts by flaming fires, which consume combustible materials rapidly and spread quickly. Sources of these fires may include paper burning in a wastebasket, or a grease fire in the kitchen.
Photoelectric technology is generally more sensitive than ionization technology at detecting large particles, which tend to be produced in greater amounts by smoldering fires, which may smolder for hours before bursting into flame. Sources of these fires may include cigarettes burning in couches or bedding.
For maximum protection, use both types of Smoke Alarms on each level and in every bedroom of your home."
[QUOTE=pixiedee55, post:55, topic:302901]
Bought 3 2 packs last time they were sold. Have two in the basement, three on the main floor, and one upstairs. Had a small dryer fire in the basement and was alerted very quickly…no damage (except the dryer of course) since the smoke alarm voice told me exactly where the smoke was coming from. These are invaluable! Very easy to program and install.
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[QUOTE=yaw4god_emt, post:76, topic:302901]
I was going to post that I wouldn’t trust a “these work great for me” review until someone gave one that actually included a fire. You fit the bill.
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One catch: As someone else pointed out, the ones being sold today do not have the Voice feature so it won’t tell you where the fire is located. It would still have saved pixiedee55’s home though.
[QUOTE=eviljim, post:59, topic:302901]
These do not have the voice alert feature, so they will NOT tell you where the fire is. You do still get alerted (good) but you won’t know WHERE the fire is.
I’ll wait for a deal on the voice alarms, which do alert you to the location of the fire.
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Thanks for the correction. I have gone back and corrected my posts. The ones I bought from Woot 2 years ago had both CO and smoke detection, and Voice (which read out the numerical value of CO level!). At only twice the cost of this Woot, $79.99 for 2, it was a bargain. That means only $15 more per unit for CO detection and Voice.
You are completely correct, but the question was not about rechargeable batteries. As you know, even primary (non-rechargeable) cells have an initial charge and their status can be fully charged, partially discharged, or fully discharged.