Do you always measure with a traditional tape measure?Are you annoyed by the lack of length and limited measurement distance for regular tape measures? A regular tape measure cannot lock a certain position. Are you worried about being cut by the tape measure? This 2-in-1 laser tape measure has changed everything Tape Measure+ Laser Distance Meters : 5m tape measure+40m laser measurement, with a measurement accuracy of ± 2mm; Continuous measurement requires only moving the device within an effective range to obtain accurate results. The dual photosensitive aperture significantly improves the stability of measurement. Powerful and Rich Functions : You can switch between different units, such as meters/feet/inches, to meet your different habits; The 40m laser rangefinder is designed for long-distance measurement. The instrument has various measurement functions, including single/continuous measurement, area measurement, volume measurement and Pythagorean measurement. USB Rechargeable: Equipped with a 180mAh rechargeable lithium battery, it has a longer lifespan and can be used continuously for 5 hours at maximum power. USB is rechargeable and can be recycled, saving battery life and concerns Self-locking Device : Equipped with a self-locking device, it automatically locks the current measurement position after pulling out the tape. Press the unlock button, and the tape will automatically rebound, making it safer and not injuring hands again.