Agrowtek's GC-Pro controls up to four climate zones. Complete control of temperature, humidity, lighting, CO2 (sensor optional), timers, irrigation and more! Includes two sensor ports, four discrete inputs, twelve outputs for relays and one basic climate sensor. Serial & Ethernet ports for free remote monitoring software. Up to four (4) climate zones with basic climate, lighting and timer controls (no dosing controls). Shown with optional touchscreen display.