A method of managing at least one network device at a site includes providing a web-based control selector to manage a detection module to control the at least one network device at the site. The method includes enabling the detection module in response to an enabled setting of the web-based control selector, and initiating a change in an operating condition of the at least one network device at the site in response to the enabled detection module and based on a detected presence of a user at the site. The method proceeds by disabling the detection module in response to the disabled web-based control selector.