Which service is specifically prohibited for a licensed electronic access control device company unless further licensed?

The correct answer is the second choice, which refers to the installation of alarm systems. In Texas, a licensed electronic access control device company is prohibited from installing alarm systems unless they hold an additional, specific license for alarm system installation. This requirement ensures that companies engaged in alarm system installation meet certain training and regulatory standards, which are crucial for public safety and effective security management. The distinction between different types of security services is important for ensuring that companies operate within the bounds of the law and maintain high industry standards.

On the other hand, other services such as installing surveillance systems, conducting investigations, and offering security training programs may not require a similar specific licensing regime under the same category. Each of these activities is governed by different regulations or licensing requirements that may or may not overlap with those for access control device companies, thus allowing them greater flexibility in offering those services without needing additional licensure. Therefore, understanding the specific licensing requirements associated with various security-related services is essential for compliance with state regulations.