Features: 3-In-1 Tool: Combines a laser measure, tape measure, and cross-line laser leveler, designed for versatile use in various projects. Accurately measure long distances, use the tape for precise readings, and align straight lines with confidence. One-key ranging with high-definition digital display: provides laser distance measurement with ±2mm accuracy. Coated manganese steel tape with dual scales (inch and metric). Self-locking tape mechanism: automatically locks the tape at the measured position when extended; press the release button to retract safely without hand injury. Effortless precision: easily measure high ceilings and hard-to-reach areas with the push of a button. The 3-in-1 infrared laser tape ruler enhances convenience and accuracy in measurements. Notice: Actual color may vary slightly from the image due to differences in display settings and lighting. Allow 1-3cm variation due to manual measurement. Material: coated manganese steel Battery: 2 * 1.5V AAA battery Laser measuring range: 40m Laser type: 635nm, ≤1mW Automatic laser shutdown: 30 seconds Automatic power-off: 180 seconds Data storage: 20 groups Tape measure range: 0-5m Minimum scale: 1mm Tape width: 19mm Tape material: 65 manganese steel Operating temperature: 0-40℃ Storage temperature: -10℃ to 50℃ Package List: 1 x 3-in-1 Digital Laser Tape Measure