NEX205 AHU Controller is a Dual Loop PID-cum-Logic Controller for intelligent humidity and temperature control. It can be used for hot water and chilled water valves, as well as with electrical heater banks, DX units for cooling, etc. Digital inputs allow monitoring of filters, AHU ON/OFF control, alarms for %RH, Temperature, DP, fire safety, etc. Relays can be used to activate hooters, or switch on or off external devices for alarms as well as monitoring purposes.