for your hen house.
Example: Room temperature rises to 80? and fan turns on. Once it cools to 65? the fan will shut off. If evening comes and temp does not fall below 65? to reset the switch, then the unit will start the next morning at sunrise and continue to cool the hen house. However, if the room temp falls below 65? at night, then the switch will shut off and will not turn the unit on again until room temp reaches 80?.
This seems like a great product with a more general application. Solar powered thermostat regulated air conditioners? Apparently they have them in Australia.