Abstract: A plug in device, furnished by an electric power utility to a customer, is installed by the customer between a wall outlet and an appliance, particularly a room air conditioner. The device contains a microprocessor that is programmable and controllable by the utility to determine the ON-OFF cycling of the appliance. The microprocessor with the aid of sensors records date and time of each instance that a programmed OFF interval is overridden through a manual input, and each instance of disconnection of appliance from device after the first connection. Also, the device is arranged on command to record the power being drawn by the attached appliance, either on a one time basis or on a scheduled interval over a predetermined time span. A remote transmitter is also provided as a source of customer I.D. and control signals for utility control of selected devices in use.