What is a key feature of reflectorless total station technology?

The key feature of reflectorless total station technology is that it allows for distance measurements to be made without the need for a reflective target. This capability is particularly beneficial in various surveying applications where placing a reflective prism is not feasible due to obstacles or safety concerns. The use of reflectorless technology simplifies the measurement process, enabling surveyors to take accurate readings directly from surfaces such as walls or other objects. This enhances efficiency and expands the range of scenarios in which a total station can be effectively used.

In contrast, the other options present features or characteristics that do not pertain to reflectorless total station technology. Reflectorless total stations inherently do not require reflective targets, as their main advantage lies in their ability to measure directly to surfaces. This further emphasizes the practicality of the technology, as it can accommodate more complex environments without the limitations that reflective targets impose.