Compartment Combination- The combination of 40M and 5M Lasr rangefinder tape measures, self-locking tape measure, high-end black and white reverse display, the results are more visible! Tape Measure- Accuracy: 1.5mm, tape width 17mm, stretch length 5m. Flexible "One Key" return with magnet; Covered nylon cover, completely wear-resistant. Laser Distance Meter- Accuracy: 2mm; m/ft/in switchable; Continuous measurement, just move the device within the valid range to get the exact result. Double photosensitive aperture apparently improves measurement stability. Class II Laser, two working modes make it more convenient for field applications. USB Rechargeable - Built-in rechargeable lithium battery for longer life, the maximum power state can be used continuously for 5 hours, USB rechargeable, can be recycled, reduce battery, save money and worry. Other Supported Functions - 1. Manual calibration can automatically adjust the laser accuracy. 2. Switch between front and rear references. 3. The laser will automatically turn off after 30 seconds of inactivity. After 180s (3 minutes) of inactivity, the screen will automatically turn off to save power. Welcome to meet