The TrolMaster DCC-1 provides a simple solution to control a single device, with more than one condition. For example, people like to turn on their exhaust fans when either temp or humidity is too high; shut off CO2 when turn on exhaust fans. There are many other examples where two conditions can be either combined or split. 

The DCC-1 is designed to be used in combination with one of TrolMaster’s plug-in style module. (DSC-1, DSH-1/2, DST-1/2, DSP-1/2, DSV-1 and DSD-1). 

Once connected to the plug-in module using the RJ12 cable built-into the DCC-1, the DCC-1 will act in concert with that plug-in module to control whatever device is connected to the plug-in module.