Excelvan 100m Laser Meter 330FT, Mute Digital Laser Distance Meter, Backlit LCD and Pythagorean Mode, Bubble Level with High Accurate Measurement Device, Battery High Accuracy: This Professional Distance Metere accuracy ups to 0.08 inch 1/25", measuring distance extends to 330 feet, and press button of UNIT to switch unit among M/In/Ft freely while using the long distance laser measure. Backlight Mute Setting: Large backlight screen provides a better visibility for in dark areas. And mute setting allows you turn on or off the measure beep at your will, suitable for using in library, classroom and other quite places. Multi-function Measurement: With multiple measurement modes like distance, volume, area measurement, continuous measurement and measurement by Pythagoras, and these versatile function assures you a easy and quick measurement and improves working efficiently with the laser measure. More Durable: IP54 waterproof level and dust-proof function protect the laser distance measure to the maximum extent; Portable size and hard rubber body provide a good grip; Wrist strap lets you hold the meter steady and carry easily. Priority Warranty: 24 months warranty and friendly customer service, if any issue, avoid hassle return, replaced directly freely and delivered within 2 days or fully refunded within 30 business days. Contact us moneysaving4you.amazon@gmail.com