SIZE: 53x15MM; WEIGHT: 35G; MEASURING RANGE: 0-99.9M; MEASUREMENT ACCURACY: ±0.5%; BATTERY CAPACITY: 200 MAH; 200 DAYS LIFETIME; MAIN MODE: UNOBSTRUCTED, LEFT AND RIGHT OBSTRUCTION, LEFT OBSTRUCTION, RIGHT OBSTRUCTION, PERIMETER MEASUREMENT; FOR MEASURING DISTANCES ON CURVED PLANES AND NON-STRAIGHT LINES, POSSIBILITY TO MEASURE A CURVED SURFACE