Description:Our Laser distance meter is specially designed to measure the distance precisely. It comes with the function of measuring area, volume, addition or subtraction easily. It can also record measuring data. The laser distance meter is hand-held and easy to operate. You can measure the distance in different unit. Worth buying.Features:Portable laser distance meter with spirit level on the right, measure any distance from 1mm to 50/60/100 meters, easily, quickly and with high accuracy. Mini laser distance with multi-functions, measuring unit switch, single distance measuring, continuous measuring, measurement of area, volume, pythagoras, addition or subtraction. Self-calibration function, with adjusting range of -9 to 9mm, keeping the precision of the device. Save and browse function, the measuring result can be automatically saved to the memory stick and you can read the saved date or remove all history records. Extension bar: mainly for the length measurement of narrow wall. Timing measurement: you can set the time for a few second before beginning measuring. Lofting measurement: you can set a sample length, and then compare the length of what you measure later with the sample. Specification: Specification Model SW-E50 Laser Distance(m 50m, 60m, 100m Accuracy(mm) 2mm Unit in/ft Laser Level 635nm, Class II Features Continuous Measurement yes Automatic Calibration yes Data Storage 30 Addition/Subtraction yes Length Measurement yes Area Measurement yes Volume Measurement yes Pythagorean Measurement yes Timing Measurement yes Extension Bar yes Lofting Measurement yes Auto Laser Off yes Buzzer Indicate yes Auto Power Off yes Operate Temperature 0~40 Relative Humidity RH85% Characteristics Power AAA 1.5V * 2 Product Color Black Package Weight 205g Product Size 112*50*25mm Accessories Pouch Package Included:1 * Laser Distance Meter(Battery is Not Included)1 * Hand Strap1 * Portable Pouch