This standalone micro-controller based LCD temperature controller provides proportional plus integral (P+I) and onoff temperature control for commercial Heating, Ventilating & Air Conditioning System such as Hydronic Heating, Air Handling Unit, Heat Exchanger or Condensing Tower. This controller has a modulating analog 2 to 10Vdc or 4 to 20mA output and a 2A onoff output to realize various optional control functions including coolheat changeover, heatcool sequence control, emergency interlocking and auto-alarming control. The DC1000 family of microprocessor based controllers combine a high degree of functionality and reliability at a very low price. Available in 4 different formats : 116 DIN, 18DIN, 316 DIN, 14 DIN. These controllers are ideal for regulating temperature in a variety of applications, including: