ADT is a leading provider of electronic security, fire protection, and smart home automation solutions for residential and business customers.
ADT Inc. is a premier American security company dedicated to providing comprehensive safety solutions for homes and businesses. With a history dating back to 1874, ADT has evolved from a telegraph-based alert system to a leader in modern smart home security and professional monitoring services.
The company offers a wide array of products, including intrusion detection alarms, video surveillance cameras, smart locks, and life safety devices such as smoke and carbon monoxide detectors. Headquartered in Boca Raton, Florida, ADT serves millions of customers with a robust network of professional monitoring centers that operate 24/7/365.
Their systems integrate seamlessly with mobile apps and smart home platforms, allowing users to control their security, view live video feeds, and manage automation settings remotely. Whether for a single-family home or a large commercial enterprise, ADT provides tailored security ecosystems designed to protect people and property.
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Most ADT sensors use standard batteries like CR123A or coin cells. To replace, locate the slot on the sensor casing, use a flathead screwdriver to open it, and swap the old battery for a new one observing polarity. Refer to the specific device manual for model-specific instructions.
User guides for systems like the ADT Command, Pulse, or Focus series can be found in the ADT Support Center or downloaded from the manuals directory on this page.
Log in to your ADT Smart Services app or web portal. You will be prompted to set up Two-Factor Authentication (2FA) via email or an authenticator app. Follow the on-screen instructions to verify your identity and secure your account.
Enter your user code or disarm the system immediately via the ADT app. If the monitoring center calls, provide your verbal password to cancel the dispatch and prevent a false alarm fee.