**From Telegraph Messengers to Security Systems: The History of ADT**
ADT is one of the most well-known security companies in the world, but its origins are much more humble than most people realize. The company started out as a telegraph messenger service in 1874.
In the early 1890s, ADT developed more advanced call boxes that allowed customers to send interactive signals to the company. ADT also started providing security and protection services to a variety of clients.
In 1910-1930, under the leadership of AT&T, ADT began to focus more on signal, security, and protection services. During this time, ADT became synonymous with emergency call systems.
When World War II broke out, there was a demand for better ADT alarm systems that could detect problems and signal an alarm automatically. ADT responded to this demand by creating automated alarm systems, such as the Teletherm automatic fire detection system and the Telewave automatic intrusion system.
Over the following decades, ADT continued to introduce new and innovative alarm systems, such as the wireless Safewatch® systems, the Focus® system line, and a variety of access control and closed circuit television (CCTV) products.
Today, ADT is a leading provider of security and monitoring services, and its alarm systems are some of the most sophisticated on the market.
**Rewrite:**
ADT is a household name in the security industry, but its humble beginnings as a telegraph messenger service may surprise some.
In 1874, 57 district telegraph delivery companies joined forces to form ADT. In the early 1890s, ADT developed advanced call boxes that allowed customers to send interactive signals to the company. ADT also began providing security and protection services to a variety of clients.
Under AT&T's leadership from 1910 to 1930, ADT shifted its focus to signal, security, and protection services. During this time, ADT became synonymous with emergency call systems.
World War II created a demand for more sophisticated ADT alarm systems that could automatically detect problems and signal an alarm. ADT responded by developing automated alarm systems like the Teletherm automatic fire detection system and the Telewave automatic intrusion system.
ADT continued to innovate throughout the following decades, introducing new alarm systems like the wireless Safewatch® systems, the Focus® system line, and a variety of access control and closed circuit television (CCTV) products.
Today, ADT is a leading provider of security and monitoring services, offering some of the most sophisticated alarm systems on the market.
