3in1 Laser Distance Meter Angle Measure Cross Line Laser Level Electric Angle Sensor with Backlit LCD Screen Distance, Area, Volume, Pythagorean Measure Item: Laser Distance Meter Color: Black Main Material: Aluminum Alloy, ABS Laser Distance Meter: Measuring Accuracy: ±2mm Measuring Unit: m/ ft /in/ft+in Measuring Range: 0.05-40M Measuring Time: 0.03s-3s Laser Grade: Ⅱ Laser Type: 630-650nm ; p<1mw Display Size: 20*24mm Laser Auto Shut-down: 15s Auto Shut-down: 45s Measures Distance: √ Measures Area: √ Measures Volume: √ Measures Indirect-Pythagoras: √ Add, Subtract: √ Change Starting Point (2 Point): √ Max/Min Measure: √ Backlit Screen Display: √ Button's Service Life: One Million Times  Angle Measure: Measure Range: ±90° Measure Accuracy: ±0.5° Cross Line Laser Level: ±2mm/5m Laser Auto Shut-down: 300s Battery Type: 3.7V 500mAh Polymer Battery   Battery Life: Max 6000 Times Distance Measure or Cross Line Laser Level for 3 Hours (Single Full Charge) Working Temperature Range: 0℃-40℃ Storage Temperature Range: -20℃-60℃ Size: 12*3.2*1.9cm/4.72*1.26*0.75inch Package Size: 15*8*4cm Package Weight: 125g