Tacklife Advanced Laser Measure 328 Ft Digital Laser Tap Measure with Mute Function Large LCD Backlit Display Measure Distance, Area and Volume, Pythagorean Mode Battery Included Black&Red ?HIGH ACCURACY - With laser precision technology, accuracy ups to 1/16inch, measuring distance extends to 328 feet; Switchable among M/In/Ft for free adjustment ?LARGE LCD WITH BACKLIGHT AND MUTE SETTING - Backlight for increased visibility in low-light conditions; Mute setting allows you turn on or off the measure beep at your will, suitable for using in library, classroom and other quite places ?GET JOBS DONE EASILY - Area, distance, length, volume, continuous measurement, Pythagorean method-three points; Addition and subtraction, Low battery indication, 20 groups data memory, auto shut down after 150s without any operation to save power ?DURABILE AND HANDY - 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 ?WHAT YOU GET - Tacklife Laser Measuring Device 328Ft; 1.5V AAA Batteries; User Manual; Belt Clip; Hand Strap; Package Box; 24 Months Warranty(Ideal halloween gifts and christmas gifts for family and friends) Measuring accuracy:0.005 feet Measuring units: M/in/ft Laser class: Class 2 Auto laser off: 30 seconds Self-calibration Historical memory: 20 Addition and subtraction Max/Min Value 4 lines display with backlight Automatic shutdown without operation :150s Automatic calculation of area and volume Single Distance Measurement Continuous Measurement Pythagoras Measurement