Features: Durable and practical Portable, very convenient to carry Large screen display, easy to read Can switch between mm and inch Specification: Resolution: Digital indicator: 0.01mm / 0.0005" Digital mini-indicator: 0.001mm / 0.00005" Measuring Range: Digital indicator: 0~12.7mm / 0.5", 0~25.4mm / 1" Digital mini-indicator: 0~5mm / 0.2", 0~12.7mm / 0.5", 0~25.4mm / 1" Power: One silver oxide battery (SR44) with work voltage 1.5V (not included) Operating temperature: 0C ~ 40C Storage temperature: -20C ~ 70C Relative humidity: Less than or equal to 80% Response speed: Less than or equal to 0.5m/s Size: L x W x H / 12 x 5.5 x 2.5cm / 4.72 x 2.16 x 0.98" Material: Aluminum alloy Color: As shown in pictures Package includes: 1 x Digital dial indicator (battery not included) 1 x Instruction manual Note: Lighting and different displays may cause slight color differences between the image and the actual item. Measurement error allowance is +/- 1-3 cm.