ADT

The initial, one-time cost of setting up a new security system. It includes activation, equipment, installation and any other standard up front costs. Prices for optional features are listed separately.

Includes the total monitoring cost over 36 months plus the one-time costs including: installation, equipment, and other costs. Because many home security companies require contracts of up to 3 years, this figure can be used to compare combined monthly and one-time prices across companies.

Indicates the manufacturer of the home security monitoring equipment included for a new system installation.

Indicates whether the system requires a operations home telephone line for operation. If no landline is required, the alarm system offers the option to be monitored via a wireless network, similar to a wireless phone. Extra charges for cellular backup may apply. See the cellular backup section.

Contacts are magnetic sensors that detect possible intrusions by monitoring the opening and closure of doors and windows. One contact is recommended for each doors and window at ground level, each window near trees and shrubs, and doors and windows that are dark or hidden from view.

The siren sounds a piercing alarm that lets intruders and your family know that the security system has been triggered.

A battery backup ensures that your home security system is functional even when the power is temporarily off.

Ensures that security personnel are always ready to contact the necessary emergency agencies and have them on the way to your home

Underwriter's Laboratories is an independent 3rd party that inspects and certifies home security monitoring stations

Allows you to talk directly to the central monitoring station personnel through the keypad rather than the phone. This enables the keypad to act as an intercom system, so the monitoring service can verify a person's identity if they accidentally trip the alarm.

Most home security systems allow you to add smoke detectors to your system. When the system detects smoke in your home, your control panel automatically contacts the central monitoring station to contact your local fire department, even if you are not at home.

Detects dangerous levels of carbon monoxide, sounds an alarm to warn your family of a possible fire.

This is the cost of having a technician come to your home and service your system if you do not purchase a system warranty.

The initial, one-time cost of establishing monitoring service for your existing security system.

Includes the total monitoring cost over 36 months plus any one-time costs including activation. This figure can be used to compare combined monthly and one-time prices across companies.