Install, maintain, or repair security systems, alarm devices, or related equipment, following blueprints of electrical layouts and building plans.

Mount and fasten control panels, door and window contacts, sensors, or video cameras, and attach electrical and telephone wiring to connect components.

Demonstrate systems for customers and explain details, such as the causes and consequences of false alarms.

Test and repair circuits and sensors, following wiring and system specifications.

Feed cables through access holes, roof spaces, or cavity walls to reach fixture outlets, positioning and terminating cables, wires, or strapping.

Examine systems to locate problems, such as loose connections or broken insulation.

Test backup batteries, keypad programming, sirens, or other security features to ensure proper functioning or to diagnose malfunctions.

Drill holes for wiring in wall studs, joists, ceilings, or floors.

Inspect installation sites and study work orders, building plans, and installation manuals to determine materials requirements and installation procedures.

Prepare documents, such as invoices or warranties.