Security system services install, maintain, and monitor security equipment such as CCTV systems, video cameras, building monitors, entry alarms, metal detectors, and movement and occupancy sensors. They may also service and maintain metal detectors and related screening equipment for airports, courthouses, jails, prisons, and other secure locations. Some security system services specialize in portable or hand-held X-ray systems and X-ray generators. Others install and maintain computed radiographic (CR) systems, digital radiographic (DR) systems, and walkthrough weapons detectors. Security system services that rent, lease, and train law enforcement personnel how to use X-ray scanners are also available.
Selecting Security System Services
Selecting security system services requires an analysis of application requirements and supplier capabilities. For example, CCTV services use closed circuit television (CCTV) for area surveillance and remote monitoring. Often, a manufacturing facility may require a complete CCTV surveillance system with multiple cameras for monitoring building entrances, parking lots, and loading docks. Security system services that install, maintain and monitor such equipment can help clients to determine if a high resolution system is necessary. These companies may also be able to perform maintenance activities for video cameras, building monitors, and entry alarms.
Security system services may be certified to install security systems from specific manufacturers. Security devices may include motion sensors, photoelectric beams, special application sensors, glassbreak detectors, sounders and strobes, contacts, holdup switches, and accessories. There are three basic types of movement and occupancy sensors: passive infrared (PIR), ultrasonic, and dual-technology. Typically, PIR sensors and PIR motion detectors are used in smaller, enclosed spaces. Motion sensors are either wired or wireless, and are designed for wall or ceiling mounting. Security system services that monitor glassbreak detectors may also recommend wireless security systems.
Some security system services rent or lease X-ray systems and metal detectors for short-term use at board meetings, conventions, concerts, and museum exhibits. These suppliers can deliver and install X-ray equipment, train personnel how to use it, and provide on-site support as necessary. Security training may include the use of X-ray screening systems for the detection and recognition of explosive devices and weapons. At post offices and airports, security system services are used to screen mail, packages, and carry-on luggage.