Maybe you dropped your DISTO and you worried it is damaged. Maybe you have had your DISTO for a while and are wondering if it is still accurate. Maybe you are just amazed at how it works and you are a little skeptical that it is really that accurate.
Whatever your motivation, the first thing you need is a reference. The best source is the calibration certificate that came with your DISTO from the factory. Each and every DISTO, regadless if it is a $1,600 S910 or a $149 E7100i, is tested and the deviation for a series of referennce measurements is recorded on a certificate that is included in the box.
My work usually requires measuring a horizontal distance. Simple enough!! Right? No! Because more often than not the line of sight is always blocked for me. Working in a mall on a busy day and god forbid if it’s a weekend. I make floor stickers for shops in the malls. Like those footsteps you see directing you towards your favourite fast food chain. In order to calculate the size and number of floor stickers, I have to calculate the distance from a particular point in the building to edge of the store. We usually get to do this only when the mall is also open for the visiting people.
Well we can’t deny the fact that the measuring tape has a long history. I guess as long as the metric system is in place, the measuring is in existence since then.
We have always been quite amazed at the precise finish of the historical monuments around the world. The architects of the ancient pyramids of Egypt, Taj Mahal, Sun temple has bewildered the generations with their perfection. They always require precise measurements in order to design buildings. Even the ancients relied on it.
Have you ever tried calculating the accurate area of a square room with your usual tape measure? Or an uneven room, for e.g. shaped like an L. Even if you somehow do manage to calculate the area, how much time do you think it would take to accomplish such a toiling task? Moreover it would be impossible to do so without someone’s help, considering the fact that the usual tape measures do need another person to hold its other end.