For whom does the Texas Private Security Act define the role of alarm systems installer?

The correct answer identifies the role of individuals who are directly involved in the installation, maintenance, or repair of alarm systems. This definition encompasses a range of responsibilities crucial to ensuring that alarm systems function correctly and efficiently. An alarm systems installer is responsible for the practical setup of the equipment, ensuring it's correctly integrated into a security system. By understanding installation procedures and maintenance protocols, they help enhance the overall security environment for both residential and commercial properties.

In contrast, the other answer choices do not adequately capture the full scope of the alarm systems installer's role. Monitoring alarm systems refers to surveillance or oversight of already installed systems but does not involve their installation or maintenance. Responding to alarms pertains to the actions taken by security personnel after an alarm is triggered, which is not part of the installation process. Selling alarm systems implies a retail or sales position rather than a technical role, missing the critical hands-on aspect of installation and repair that defines the installer’s responsibilities.