You do not have to start haggling with a tape measure or ruler to calculate distances, if you have the Einhell TC-LD 50 at home. This laser distance meter has a range of up to 50 meters and calculates not only distances, but also surfaces and volumes. And if, for example, you place poles around the garden, you use the TC-LD 50 to keep exactly the same distance between each pile. The last 20 measurements are saved automatically and you forget to turn the meter off, then he does this after 3 minutes of himself. This way the batteries last a long time.