An improved landscape device controller system is presented where the controller is capable of remotely controlling multiple devices and multiple types of devices by means of a microprocessor-controlled hand-held device. The invention can be programmed to set various parameters in electrical timers, controllers, and landscape devices, such as time of day, duration of operation, start time and the like. The invention uses low-power radio communication, including receiving return signals from the device controllers and displaying their status on the controller. The invention is programmable to accommodate a multitude of devices and allow the user to control the devices while carrying the portable controller.