First burglar alarm installed

Edwin Thomas Holmes installed a burglar alarm in a Boston building. Using an electrical circuit that trips when the connection was broken with opening of a door or window, it was the first of its kind. Holmes eventually established a successful "protection company." (By John Osborne)
Source Citation
Joseph Nathan Kane, ed., Famous First Facts (New York: H.W. Wilson Company, 1981), 142.
    Date Certainty
    How to Cite This Page: "First burglar alarm installed," House Divided: The Civil War Research Engine at Dickinson College,