So for measuring of things that need to be made (eg shelves) is the expensive thing unsuitable. As you fly to Mars (from the technical achievement seen), and a well-known company like Bosch is not to build in the location a meter that measures accurately to within 50 or 25 meters ?!
The neighbor has carried out such a device from Bosch (25 meter device) and we have time both measurements: None of the devices has only once shown the measurement result, as the ruler .... therefore for me unusable