HIGH PRECISION - Uses laser precision technology with accuracy up to ±1.5mm and a measurement range of up to 50m. Switchable between meters, inches, and feet for flexible unit adjustment. Features two bubble levels for improved measurement accuracy. LCD BACKLIGHT AND MUTE FUNCTION - Large backlit display enhances visibility in low-light conditions. Mute function allows you to turn the sound on or off, making it ideal for quiet environments such as libraries and classrooms. MULTIPLE MEASUREMENT FUNCTIONS - Measures area, distance, length, and volume. Supports continuous measurement and Pythagorean measurement using three points. Includes addition and subtraction functions, low battery indicator, and stores up to 99 groups of data. Data can be manually deleted. Automatically powers off after 150 seconds of inactivity to conserve battery life. DURABLE AND PORTABLE DESIGN - IP54 rated for protection against dust and water. Compact size and rubberized housing provide a secure grip. Includes a wrist strap for added convenience and secure handling.