The CONTROLLER 69™ PRO+ is a next-gen digital thermostat controller designed to provide AC Infinity devices with smart programming to produce the most optimized environment. This central command unit connects with up to eight different devices from fans to lights to provide each with independent climate and time-based programming. The backlit display reads temperature in Fahrenheit or Celsius and can be switched off while programs run in the background. Built with a kickstand and includes hardware to be hung on walls. The 12-foot sensor probe with thermal-alloy head accurately detects current temperature and humidity. It also detects VPD (vapor pressure deficit), which measures ambient temperature, relative humidity, and the plant’s leaf temperature in order to determine the optimal atmosphere. This allows you to monitor growing conditions more closely than if you were to rely on temperature and humidity alone. This product is a part of the UIS™ platform of grow devices and smart controllers, designed to integrate with each other to achieve your ideal environment.