Product review (5 stars): Very accurate...Recommend the purchase.
Installed the Energizer Ultimate Lithium batteries in the unit.  It has proven to be very accurate both indoors and outdoors.  The temperature display is large and visible with the unit sitting on my desk.  The remote sensor is approx. 80 feet away from the reader, hanging under the eaves of a gazebo by a chain of approx 2 feet.  That way it stays out of direct sun and falling rain. Have used the product for over a month now and am very pleased.