The Moore Wright Water Resistant Series Digital Calliper 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. The callipers are manufactured to DIN 862 standards, and are water and dust resistant to IP54 specifications. Supplied with a CR2032 battery. Specification: Range: 0-150mm (0-6in). Resolution: 0.01mm (0.0005in). Jaws: 40mm.