Safewatch cellguard:  A cellular product offered by ADT that enables your home security system to communicate with ADT’s customer monitoring centers. Provides protection if your home telephone service is disrupted due to fallen lines, storms or construction.

Security camera:  Capture images by transforming the visible scene observed by a camera lens into an electric signal to be processed. Often used as a means to deters criminal behavior.

Security monitoring:  If you have activated your home security system and any of the home security sensors or detectors are set off, an emergency signal is transmitted either via phone lines, the internet or cellular towers to the central station. Upon receiving the signal, a trained professional will notify the appropriate authority.

Security risk assessment:  The process of identifying all possible risks, their likelihood of occurrence and their impact. The results of the assessment are used to identify ways to reduce risk and improve safety.

Security system:  An electrical device that sets off an alarm and notifies, residents, authorities and security center once a sensor is triggered such as in the case of a possible burglar, intrusion, fire, or other safety monitoring.

Smoke detector:  A device used to detect smoke, typically as an indicator of fire. Household detectors also known as smoke alarms, generally sound an audible and/or visual alarm. Smoke detectors are usually housed in a disk-shaped plastic enclosure about 6 inches in diameter and 1 inch thick and are often powered by a disposable battery. The shape of a smoke detector can vary by manufacturer.

Spy camera:  A hidden camera can be a still or video camera used to film people without their knowledge.

Surveillance system:  Electronic devices used to maintain close observation of areas from a distance and without being seen.