Just buy what they recommend.
Cables (twists/meter), plugs, the analogue volt meter used to set to desired temperature and read it for the "push" to calibrate setup.
We do use an enclosure to mount the hardware near your heater assembly, makes life easier if you can manage that.
Cables (twists/meter), plugs, the analogue volt meter used to set to desired temperature and read it for the "push" to calibrate setup.
We do use an enclosure to mount the hardware near your heater assembly, makes life easier if you can manage that.