
I am using this device in a vertical room where it tells me the temperature in a 5x9 room. It was extremely accurate and depending on the timing settings the battery life lasts quite a while. But not as long as stated. I currently have it set to update every 6 hours and this setting says the battery should last 2 years. But I found it lasted about a year. For me it's still a lot. I would buy it again without hesitation.

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