1 2MM ACCURACY: This laser distance meter provides higher accuracy. It is easier to find the horizontal direction, and it can also carry out self calibration, and the measurement results are more accurate. 2FAST MEASUREMENT: The laser distance meter of laser head component can measure quickly and accurately in 0.5 seconds. 3WIDELY USED: The meter is an ideal choice for home decoration, especially for large areas such as apartments, buildings, real estate, factories, warehouses, buildings and industrial sectors. 499 DATA MEMORY: The meter supports 99 data records and callback functions, convenient for verification and calculation. 5EASY CARRYING: Comes with a small size and lightweight as well, you can easily take the meter for convenient use. 6AUTOMATIC SHUTDOWN: The laser distance meter will automatically shut down after 150s with no operation to save power.