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 40/60/80 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. Record function, it can record your measuring result under measuring mode and can also record the result under area, volume and pythagoras mode, and all the recent records can be deleted keep your safe right in the meter. Comes with a portable pouch and a hand strap, which makes it easy to be taken anywhere or to be stored for next time use. Specification: Specification Model SW-T40 Laser Distance(m 40m, 60m, 80m 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 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 188g Product Size 112*50*25mm Accessories Strap, Pouch Package Included:1 * Laser Distance Meter (the battery is not included)1 * Hand Strap1 * Portable Pouch