The diagrams below illustrate the differences between a typical standard controller’s soak time and the dry time compared to the Agpro FS400 automatic cow cooling controller. Typically a temperature switch activates a repeat cycle timer (at 72 degrees) that turns on the soaker for 3 minutes and turns off the soaker for 12 minutes. (See red curves below.) The Agpro controller monitors both temperature and humidity. The soak time varies from 1 minute to 4 minutes based on temperature. The dry time varies from 4 minutes to 20 minutes depending on the humidity. This results in a more efficient use of water and the ability for the controller to adjust amount of cooling based on weather conditions.