Title: Eats batteries like it's starving
Product review: I bought this unit because we have a fireplace. While the unit appears to work detecting carbon monoxide, as another reviewer noted it drains batteries like no tomorrow. The battery in this unit is certainly NOT used for backup. We just went through a 4 day power outage and the unit drained batteries every 4 to 6 hours. We had to keep replacing them as we were using our fireplace as our only meager source of heat. Even with AC power the battery still only lasts for maybe a month. I'm very disappointed in this model, especially since I paid good money for it.
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