Alarm Computer Technology, also commonly known as ACT, is a privately-held regional electronic security company headquartered in Swansea, Massachusetts. The company was founded by President and primary owner Helder Lemos in 1983. Alarm Computer Technology offers various products and services, such as burglar alarm systems, fire alarms, CCTV systems, access control and home theater & audio systems. They currently service several thousand commercial and residential customers throughout New England, as well as in New York, New Jersey, and Pennsylvania. The company is notable for providing a variety of security services to the Dunkin' Donuts restaurant chain, currently servicing over 1,300 Dunkin' Donuts locations throughout the Northeast United States.

Watch your property, solve your problems, answer some questions, AND discourage theft and\or vandalism: All at the same time. Contact us for professional installation and\or integration of video security (CCTV) cameras and systems. Don't just buy a system out of a box and expect it to give you the views you require. We advise you as you do it yourself or we're there to assist you, and we fully support all of ycameras, DVR's, and systems as well as designs, integrations, and installations. All hardware is covered with a 1 year warranty. Customized Support and Service with low costs. It's what we do. Our costs are very affordable and the cameras are high resolution with color and infrared. We are the preferred choice for business, industrial, residential, municipal, and\or covert use