Operation Manual
Page 60
... 2 minute backlight use per hour at 25°C (77°F) Note: May vary according to various usage conditions Weight (including battery): Approx. 153 g (0.34 lb) Dimensions (when closed): 132.4 mm (W) × 98.8 mm (D) × 13.5 mm (H) 5-7/32" (W) × 3-7/8" (D) × 17/32" (H) Accessories: Alkaline battery LR03 (size 'AAA') × 1, operation manual 58
... 2 minute backlight use per hour at 25°C (77°F) Note: May vary according to various usage conditions Weight (including battery): Approx. 153 g (0.34 lb) Dimensions (when closed): 132.4 mm (W) × 98.8 mm (D) × 13.5 mm (H) 5-7/32" (W) × 3-7/8" (D) × 17/32" (H) Accessories: Alkaline battery LR03 (size 'AAA') × 1, operation manual 58