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Review title: Amazon must have old stock!
Product review: This unit was exactly as described - but the units in Amazon's warehouse must be old stock, the battery had a production date two years ago! Or Kidde got a deal from Duracell on nearly dead old chinese-made 9v batteries. I didn't realize this until the unit started beeping in the middle of the (first!) night and saying "Low battery". Of course the reason I bought an AC powered alarm was to avoid exactly this scenario. So check your fridge for new batteries if you buy one of these Kidde products from Amazon.
