What is a key safety feature of the K-Laser that helps prevent unauthorized use?

The electronic access key serves as a vital safety feature of the K-Laser by ensuring that only authorized personnel can operate the device. This key restricts access and usage to trained operators, which is essential in a clinical setting where misuse could lead to injuries or improper treatment. By requiring an electronic key for activation, the K-Laser helps maintain a controlled environment, protecting both patients and practitioners from the risks associated with unauthorized use. This feature highlights the importance of accountability and safety in laser therapy, promoting responsible operation in therapeutic applications.

The other options, while important for different aspects of safety and functionality, do not directly address the issue of unauthorized use as effectively as the electronic access key does. For example, emergency switches and indicators relate more to emergency responses and operational status rather than access control.