PHYSICAL CHARACTERISTICS DIMENSIONS 176 mm (6.9) x 90 (3.5) x 28 mm (1.1 in) minimum WEIGHT 424 to 463 g (14,9 to 16,3 oz) depending on model (incl. battery) DISPLAY Reflective TFT daylight readable color display, 240 x 320 pixels,3.5 in. (89 mm) diagonal, 64 K colors, backlight, touch screenKEYBOARD 27 rubber keys, triple scan key, backlit keyboard standardOPERATING TEMPERATURE -10 C (14 ںF ) to +50 C (122 ںF )STORAGE TEMPERATURE -20 C (-4 ںF ) to +70 C (158 ںF )DROP RESISTANCE Withstands drops from 1.5 meters (5 ft) onto concreteENVIRONMENTAL SEALING IP64 standard for water and dust resistance...