Laser Distance Meter are measurement tools that let you take measurements easily with one hand , for different jobs and in different situations with great accuracy. They bring you safety because they give you the ability to measure areas that are hard to access , such as high places like ceiling and you won't have to climb a ladder. They reduce errors in measurement and as a result you do the job precisely. You just need to point the device to the surface you desire and click a button then you can see the result in front of you on the LCD screen. You can work on places that the light is poor with this device. Some models are able to measure up to 1000 meters instantly.