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Title: Great product
Review: Pros:- I like that is uses AA batteries and not the 9-volt square ones.- I like that is does both functions in one unit - CO2 and Smoke.- I like that it uses both voice and ear splitting alarm to warn you. Also that the two alarm are different and distinguishable.Cons:- I don't like that it needs the base attached in order to function. I used one in my 18-Wheeler truck, and when I misplaced the base, I was out of luck.
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