Description Specifications Display screen: 128 x 32 mm LCD Measuring range: 0.7 to 250 mm Indication accuracy: 0.01 mm Sound velocity: 1000 to 9999 meters per second Auto shutdown time: 90 seconds Measurement period: 2 times per second Power supply: 72 hours with 2 AAA batteries Operation temperature: -10 centigrade to 40 centigrade Storage temperature: -20 centigrade to 70 centigrade Dimension: 108 x 61 x 25 mm Weight: 230 grams (with batteries)
