EC-447 (650-0891) Specifications Faxback Doc. # 6758 Display:......................................................8-Digit, LCD Back-Up Battery:.....................................389A, Cat. No. 23-117 Operating Temperature:........................32 degrees F - 104 degrees F (0 degrees C - 40 degrees C) Solar Cell Minimum Illunination:...................................130 LUX Dimensions:.....................................3 x 5 11/32 X 11/32 Inches (76 x 136 x 8.5 mm) (W x D x H) Weight:................................................3.5 oz. (100 grams) (CJD/all-7/12/94)