- Standby with automatic power-off function to conserve battery life; powered by a CR2032 button battery (not included) with a runtime exceeding 2000 hours. - Large LCD display allows for easy reading of measurements; measuring range from 0 to 999.9° with an accuracy of ±0.3° and a resolution of 0.1°. - 2-in-1 design combines a digital protractor and a stainless steel ruler, offering precise measurements for various tasks. - Enables comprehensive 360-degree measurement of internal and reverse angles, featuring both standard and metric scales, with support for relative and absolute angle measurement. - Durable stainless steel body ensures long-lasting use; equipped with HOLD and RESET functions, and laser-engraved scales that remain clear and resistant to wear. - Convenient locking screw allows you to secure the ruler at any angle for stability while measuring, ensuring accuracy and ease of reading. Use Cases: - Ideal for carpenters and woodworkers who require precise angle measurements for joints and cuts. - Perfect for engineers and architects working on projects that demand reliable angle calculations. - Great for DIY enthusiasts needing accurate measurements for home improvement tasks or crafting projects.