Automatic shutdown function: Equipped with intelligent energy-saving design, it automatically shuts off when not in use for a long time, extending battery life Achieve professional precisions with this digital caliper featuring accurate sensors technology, ±0.001 " accuracy for measurements in critical engineering and manufacturing applications Ideal for mechanical engineers, inspectors, and serious DIYer enthusiasts requiring laboratory levels accuracy for metalworking projects, printing verification, and precisions equipment maintenance Perfect for measuring internal / external diameters in automotive parts, verifying component depths in electronic assemblies, and checking step dimensions during prototype development across industrial and hobbyist environments The oversized backlit LCD screen ensures clear readability in low light workshops, while its stainless steel construction resists and maintains dimensional stability through heavy daily use, Manufacturer: Oxxggkao