This Moore & Wright IP54 Water-Resistant Digital Caliper has the following specifications: Range: 0-300mm (0-12in). Accuracy: 0.04mm. Resolution: 0.01mm (0.0005in). Jaws: 60mm. Moore & Wright Water Resistant Series Digital Callipers are fitted with a patented ceramic capacitive sensor and a large LCD display offering 4-way measurement (mm/inch, absolute/incremental). They can be zeroed at any point on the scale and are fitted with a conveniently located on/off switch. Manufactured to DIN 862 standards, and are water and dust resistant to IP54 specifications. Supplied with a CR2032 battery.