Measuring Range: 0.05-50m Measuring Accuracy: ±1.5mm Measuring Unit: mm/in/ft Continuous Measurement: YES Area Measurement: YES Volume Measurement: YES Triangle leg Measurement: YES Addition/Subtraction: YES Max./Min. Measurement: YES Max storage: 100 Units Key tone YES Laser Class: 620-680nm Class 2 Auto Laser Off: 20s Auto Power Off: 150s Storage Temperature: -20℃-60℃ Operating Temperature: 0℃-40℃ Battery: 1.5V 2*AAA Meter Dimension: 118*54*26.5mm Weight: 112g Accessories: Battery, Manual, Giftbox