【High Precision Digital Protractor】: Measures 0-999.9° with a high accuracy of ±0.3°. This 400mm (16") digital protractor delivers stable readings for carpentry, woodworking, miter cuts, machine alignment and precision assembly projects. 【Intelligent Operation】: Equipped with LCD display, HOLD function and 180° reverse display (reversible display) for easy reading - even upside down or in tight spaces. The angle lock allows precise positioning. Robust laser engraved scale: wear-resistant, laser-engraved markings remain permanently clear to read. Made from high-strength technical plastic - lightweight, impact-resistant and ideal for construction sites and workshops. 【Long Battery Life】This 2-in-1 digital protractor features intelligent auto on/off for easy measuring. Comes with 2 CR2032 batteries (1 already inserted + 1 replacement) for long-lasting, energy-saving use. Versatile for professionals and DIY enthusiasts: This versatile digital angle gauge is perfect for carpenters, woodworkers, builders and DIY enthusiasts. Wide application in home renovations, tool calibration, furniture construction and various measuring tasks on site.