General description This 3in1 Laser Rangefinder combines laser ranging, a 5m tape measure, and laser cross-marking into one versatile device. It features multiple measurement functions including single and continuous measurement, area and volume measurement, and Pythagorean measurement. With a historical data memory function, it can store up to 20 groups of data, making it ideal for various applications such as road engineering, construction, and electric power engineering. Technical specifications Name: 3in1 Laser Rangefinder Material: ABS+TPR+coated manganese steel Battery: 2 * 1.5V AAA battery (not included) Laser measuring ranges: 0.2-40m, 0.2-60m (optional) Resolution: ±2mm Measurement unit: m/in/ft Laser type: 635nm≤1mW Automatic laser shutdown time: 30 seconds Automatic shutdown time: 180 seconds Data store: 20 groups Tape measure working ranges: 0-5m Minimum scale: 1mm Tape width: 19mm Unit: Imperial system and metric scale Ruler belt material: 65 manganese steel Working