240v Temp Device Station, Temp Control Relay Pack w/cable setThe TrolMaster DST 2 Temperature control modules allow the user to easily connect and control standard heating or cooling. devices to the Hydro x. Any heating or cooling device that is 10 amps @ 240 volts or less can be controlled by the DST 2. The TrolMaster DSP 1 program device module (timer module) works like a multi function timer. The DSP 1 allows the user to easily connect any device that needs to be controlled by TIME to the Hydro x. Any device