- Vinabo Classic Digital Caliper 150 mm / 6 inches with large LCD display for clear readings - Plastic and carbon fiber construction, lightweight, resistant to corrosion and scratches - Measures external diameters, internal diameters, depths, and steps with precision and ease - 0.1 mm resolution and ±0.2 mm accuracy, suitable for non-professional measuring tasks - Quick conversion between millimeters and inches according to user preference - Reset function to recalibrate and maintain accuracy with each use - Automatic shut-off after 5-8 minutes to optimize battery consumption - Includes built-in battery and spare LR44 1.5 V battery - Ideal for use in homes, schools, laboratories, and factories