Wide Applications: Achieve professional-level precision measurements at home, ensuring accurate results in a single step. Ideal for jewelers, woodworkers, mechanics, hobbyists, DIY enthusiasts, automotive technicians, and various other professionals and hobbyists. It's the perfect caliper measurement tool for your needs. User-friendly & Considerate Design: Insert battery compartment design, accompanied by a battery box removal tool, simplifies battery replacement. The auto-off feature activates after 5 minutes of inactivity, conserving power effortlessly. Support for SPC output enables convenient data retrieval. 4 Measurement Modes: The caliper offers the versatility to measure internal, external, depth, and step dimensions, serving multiple functions. The caliper comes with a newly upgraded portable rugged plastic case for easy storage. It is pressure-resistant and shockproof, suitable for measurements in any places. Outstanding Performance & Zero Setting: Stainless steel body for enhanced durability, wear resistance, and rust prevention. IP54 protection guards against dust, water, and oil. Powered by a 3V CR2032 battery, with an additional two batteries included, ensuring prolonged usage of the caliper. The ZERO setting button allows new measurements to begin at any position on the scale. Precise Measurement: Measuring Range: 0 - 6'' / 0 - 150 mm; Accuracy: ±0.001'' / 0.02 mm, Resolution: 0.0005'' / 0.01 mm. Utilizing a glass material sensor ensures max. measurement stability. The large LCD screen enables swift reading of measurements. Inch/millimeter conversion allows for faster and more accurate measurements, catering to various precision measurement needs.