R-tek Laser Distance Meter, 40 m Range Continuous Measurement, Distance,Volume&Area Measurement Included Battery Non-magnetic Engineer's Precision Level  (11.5 cm)

SPECIFICATIONS • Historical Data Review: 20Groups • Laser Auto Switch of :30s • Instrument Auto Switch off : 180s • Measuring Range: 40m: 0.05m~40m • Measuring Accuracy : ±2.0mm • Measuring Unit: m, ft, in • Area Unit: m² , ft² in² • Volume Unit: m³ , ft³ in³ • Laser Type: 620-690nm • Laser Class: Class II, <1mW • Operating Temperature: 0~+40°C • Storage Temperature : -20~+65°C • Batteries: AAA(Alkaline),2×1.5V • Working time (Fully charged): >5000 times • Weight (Without batteries): Approximate 72g • Dimension (L*W*H): 110X46X25mm