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Kidde Dual Sensor 9V Smoke Alarm

by Kidde

Price: £24.99
Only 2 left in stock.
Dispatched from and sold by Online2Home.
  • Dual sensors - Ionisation responds quickly to fast flaming fires
  • Optical responds quickly to slow smouldering fires
  • Battery operated (battery included)
  • Low battery alert, test button
  • Loud 85db warning alarm. Hush button
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Frequently Bought Together

Kidde Dual Sensor 9V Smoke Alarm + Kidde 0122UK Dual Smoke and Carbon Monoxide Alarm + Fire Blanket 1m x 1m
Price For All Three: £52.34

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Product Information

Technical Details
Part Number 3NT-46039A
Item Weight2 Kg
Manufacturer reference3NT-46039A
Weight2 kilograms
  
Additional Information
ASINB0039ZAQXO
Best Sellers Rank 26,677 in DIY & Tools (See top 100)
Shipping Weight1.6 Kg
Delivery Destinations:Visit the Delivery Destinations Help page to see where this item can be delivered.
Date First Available25 Feb 2010
  
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Product Description

Dual sensors - Ionisation responds quickly to fast flaming fires - Optical responds quickly to slow smouldering fires Battery operated smoke alarm

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Most Helpful Customer Reviews

The Kidde PI9000 Dual Sensor Smoke Alarm is the most comprehensive smoke alarms you can buy on a budget. It is important not to confuse the PI9000 with combined smoke and carbon monoxide alarms. Dual sensor means it contains two types of smoke detector - ionisation and optical, not that it senses smoke and carbon monoxide - it ONLY sense smoke. However it does this very well. Almost all home smoke alarms have only one type of sensor - usually an ionisation sensor. Ionisation sensors are very good at detecting fast flaming fires such as chip pan fires or burning paper and wood. They are not so good at detecting slow-burning, smouldering fires which produce lots of smoke before they start to flame, such as foam upholstery or overheating wiring. The other type of smoke sensor is an optical/photo-electric sensor and this is very good at detecting the sort of fires ionisation sensors struggle to detect - the slow burning fires previously mentioned like soft furnishings or overheated wiring.

If you are looking at other smoke alarms check to see what kind of sensor they use and decide what's appropriate for where you're going to use it. I deliberately sought out a dual sensor alarm as I wanted the best of both worlds and most manufacturers recommend that you fit both types of alarm in your house. I decided buying a dual sensor would save space over having two separate alarm units on the ceiling. A dual sensor alarm should also detect fires faster and give you more time to escape.

I was pleased with the PI9000 unit when it arrived. It comes with very comprehensive instructions describing how to fit the battery, test the unit and also the best places to fit the unit and where to avoid (near kitchens, bathrooms and too close to walls as apparently there can be `dead air' space here).
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4 of 4 people found the following review helpful By Silvershopper on 29 April 2014
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This seemed a bargain at £14.90 for a dual sensor alarm. However, the manufacturing date on mine was March 2011, effectively reducing its 10-year usable life by 3 years. In spite of that it seems reasonable value for money if it works OK over its remaining life-span (which I dearly hope that it will). It is pretty chunky (but not heavy), but was easy to fit to a plaster-boarded ceiling
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3 of 3 people found the following review helpful By Geoff on 16 Mar 2014
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Can't comment on the effectiveness of the product - thank goodness!
However, the ones I bought had been reduced in price which appeared to make them very good value for money. But when I looked on the back of the units they had a manufacturing date of March 26, 2011. With a recommended service life of 10 years this makes them not such good value for money.
With something as important as a smoke detector it would be useful if the supplier could make this information clear. It would also be helpful if the date was made clear on the outside of the packaging rather than on the product itself which can only be seen once open.
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9 of 10 people found the following review helpful By Brian R. Martin TOP 500 REVIEWERVINE VOICE on 25 Dec 2012
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Most smoke alarms detect the ionization products of combustion. They react quickly to situations where a fire rapidly produces flames, such as oil burning in a domestic pan fire, or the combustion of paper and wood. However, they are less effective at detecting slow-burning fires, which can smolder for a long time and produce lots of smoke before flames appears. This can be the situation when foam upholstery catches fire or faulty electric wiring overheats. Such fires can be deadly, and in these cases a detector that uses an optical sensor is far more efficient. The Kidde PI9000 Dual Sensor Smoke Alarm contains both types of detector and is unique for a reasonably priced alarm. It is not, of course, a carbon monoxide detector. Dual smoke and gas detectors are available, but again usually only contain an ionization detector in the smoke part.

This detector is sturdy, well made, and has a full set of instructions for its fitting, with suggestions for its best location. It may be fitted by screwing the base plate into a ceiling (screws supplied), or alternatively one could use self-adhesive Velcro pads (available in any DIY store). The alarm then twists onto a locking ring on the base plate, after which the whole assembly can be rotated to align as you wish. There is a push-button test facility to check that the battery is charged, and it also enables the alarm to be disabled for several minutes so that a minor smoke situation (burnt toast etc.) can be resolved. An LED flashes every 30 secs or so to confirm the device is active, and a warning noise sounds when the battery is very low. There is also a simple mechanical safety feature that prevents the detector being put into the locking ring if the battery compartment is open, so reducing the possibility of assembling it without a battery.
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2 of 2 people found the following review helpful By A. Jackson on 2 Jan 2014
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Dual purpose alarm sited in the loft, just in case there is ever a fault in the TV aerial amplifier...you never know. Cheap enough for that extra bit of insurance.
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2 of 2 people found the following review helpful By paul from london on 8 Nov 2013
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this is a good product. the product was exactly as it was described in the description. would order again in future.
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2 of 2 people found the following review helpful By Eileen on 21 Jun 2013
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Easy to install and as far as we know (not having had a fire to test it!), it does the job. Unfortunately it arrived with a flat battery.
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1 of 1 people found the following review helpful By dmoggy on 19 April 2014
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After researching the market, I decided to purchase this smoke alarm for my daughter's home, to replace the ageing "normal" smoke alarm at the top of the stairs. She already had a carbon monoxide detector located in the hallway, so I considered this superior type of detector to be best located at the top of the stairs too, as the kitchen part of the open-plan ground floor is close by. This alarm was much larger in diameter than expected, so in turn, looks the part. It was easy to fix, BUT MAKE SURE YOU READ THE INSTRUCTIONS FIRST (unlike me), which shows the correct orientation of the unit, otherwise it looks "pants" if you get it wrong! Testing the unit is easy (if you have a stepladder or long pole), and can only hope that it does it's job well, if its ever called upon to do so. Still, it's peace of mind that counts!
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