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Title: Nothing is Free
Review: There is a reason these are being sold for this price. Unfortunately, you can't see the date stamp until you open them. The ones I purchased in Oct, 2008 had a date of Sept, 2002.If you want to get full life usefulness out of a smoke detector (10 years), you would be wise to shop at your local hardware stores, where you can see the date before you buy.
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