I ordered two thermometers because the price was so low. I didn't know they came with batteries so that was a pleasant surprise. The numbers on the display are very large and the ability to backlit the display is wonderful. We already had a thermometer that we knew was accurate but cost twice as much and didn't even show humidity. We installed two new ones next to the one we already had and they all showed the same temperature so I'm sure the Vivosun thermometers are accurate. I am planning to buy two more and can buy them before Christmas to give away. You can't go wrong with this choice.
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