The Guardian 2010 Stove Guard for Electric Cook Tops is a stove safety sensor designed for use by individuals with cognitive or memory disabilities or Alzheimer's disease. The system includes a electronic monitoring unit (EMU) that monitors the appliance's use and a power box that controls power to the cooktop. In addition to the Basic Model, this product is offered in two other versions: the Delay Model has a "press and hold" feature that is designed to prevent users from easily changing settings so it will thwart a "button pusher" user's attempts to disable the device; and the Password Model features password locking, for managed-care type situations, so that administrators can set the device to the user's particular needs and then password lock it. Major features of all models include a fail-safe operating feature that automatically disables power to the cooktop if the EMU control unit fails or is unplugged; relay-out feature that sends a signal out whenever Stove Guard disables the cooktop to an external monitoring device such as a phone dialer, alarm system or a computer-based data gathering system; audible alarm that notifies the user when the Stove Guard turns off the cooktop; stove off mode that will turn the cooktop off by touching one button; and power failure recovery that disables power to the cooktop after a power outage until the user presses any button. In case of power outage, the Stove Guard EMU will remember the previous settings and the password lock state if in password mode. Mounting screws and and an instruction manual are also included. DIMENSIONS(HxLxW): Power box is 11 x 5.5 x 2.5 inches. EMU is 9.75 x 2.25 x 2.25 inches.