Wide Variety of Measurements *Distance Measurement *Volume Measurement *Area Measurement *Pythagorean Measurement Specifications: Measuring Range 0.05-80m Measuring Accuracy ± 1.5mm Laser Automatically Power Off 30 seconds Auto Switch Off 180 seconds Laser Type 620 - 690nm Laser Class Class II, <1mW Operating Temperature 0-+40 °C Storage Temperature -20 -+65°C Battery Type Alkaline AAA 2x1.5V Measured Time (Full Power Capacity) > 8000 6 Months Service Warranty