Abstract: The present invention provides a retrofit device to automatically shut off a clothes dryer to prevent over drying. The device includes a humidity sensor apparatus for placement inside a clothes dryer. The Sensor communicates with a Receiver device connected to an electrical wall outlet and to the electrical plug of the clothes dryer. The Receiver turns off the power to the clothes dryer when the humidity level in the clothes dryer drops to a predetermined level, as detected by the Sensor.

Abstract: This invention is applicable to new and old clothes dryers, even clothes dryers that have a moisture sensor built-in because this invention measures the humidity. The invention, Retrofit Moisture and Humidity Sensor and Automatic Shutoff device for Clothes Dryers, relates to an apparatus and methods for reducing energy consumption for gas and electric domestic or industrial clothes dryers by placing or retrofitting a moisture/humidity sensing apparatus inside or unto the drum of a clothes dryer. The Sensor is able to remotely/wirelessly communicate to a Receiver device. The clothes dryer is directly plugged into the Receiver. The Receiver device serves the purpose of shutting the power to the clothes dryer when the items in the clothes dryer are dry as indicated by the Sensor. The moisture/humidity detecting sensor has various levels of dryness to choose from. Although moisture detecting dryers are readily available, these types of dryers are not in the price range of most consumers.