This digital caliper is excellent for the shop, home, work or school. Its large LCD display makes reading your measurements a snap. Carbon fiber composite construction is extremely durable. Display can be changed from inches, millimeters, or fractional inches with instant conversions. Its slide rule is also marked in inches and millimeters.Features include:Extra strong carbon fiber composites, lightweight and durableBig LCD display for easy readingLow voltage warning by flashing displayMeasuring range: 0-150mm 0-6inchesResolution: 0.1mm 0.01 inchesRepeatability: 0.1mm 0.01 inchesMaximum measuring speed: 1.5m/sec, 60 inches/secondMeasuring system: Non-contact linear CAP measuring systemDisplay: LCD display, minus (-) sign, 4 digits character and IN sign for inch measuringPower: One batter, SR44LR44 1.5V (included), flashing display warns the end of its lifeIncludes retail packaging